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Stormwater report
Olympic Discovery Trail Stormwater Site Plan Report Updated Draft - 90% Design Submittal Submitted to: Jefferson County Department of Public Works John Fleming, Olympic Discovery Trail Project Manager Prepared by: Otak, Inc. 11241 Willows Road NE, Suite 200 Redmond, WA 98052 January 24, 2024 Project No. 33425 Olympic Discovery Trail Stormwater Site Plan Report Otak Olympic Discovery Trail Stormwater Site Plan Report Otak Acknowledgements Olympic Discovery Trail Stormwater Site Plan Report Updated Draft Submitted to: Jefferson County Department of Public Works Prepared By: Otak, Inc. 2828 Colby Avenue, Suite 401 Everett, WA 98201 425-250-5214 David Ojala, PE Water Resources Engineer Rachel Seidner Engineer in Training Nico Vanderhorst, PE Project Manager Olympic Discovery Trail Stormwater Site Plan Report Otak TABLE OF CONTENTS Page Introduction ............................................................................................... 5 Design References ................................................................................................................................... 5 Existing Site Conditions ............................................................................................................................ 5 Proposed Site Conditions ......................................................................................................................... 6 TDA Threshold Areas ............................................................................................................................... 6 Stormwater Management Requirements Assessment .......................... 8 Applicability of Minimum Requirements .................................................................................................... 8 Minimum Requirement 1........................................................................................................................... 8 Preparation of Stormwater Site Plans .................................................................................................. 8 Minimum Requirement 2........................................................................................................................... 8 Construction Stormwater Pollution Prevention Plan (SWPPP) ............................................................ 8 Minimum Requirement 3........................................................................................................................... 8 Source Control of Pollution ................................................................................................................... 8 Minimum Requirement 4........................................................................................................................... 8 Preservation of Natural Drainage System and Outfalls ........................................................................ 8 Minimum Requirement 5........................................................................................................................... 8 On-Site Stormwater Management ........................................................................................................ 8 Minimum Requirement 6........................................................................................................................... 9 Runoff Treatment .................................................................................................................................. 9 Minimum Requirement 7........................................................................................................................... 9 Flow Control .......................................................................................................................................... 9 Minimum Requirement 8......................................................................................................................... 10 Wetlands Protection ............................................................................................................................ 10 Minimum Requirement 9......................................................................................................................... 10 Operation and Maintenance ............................................................................................................... 10 Off-site Analysis ...................................................................................... 11 Flow Control and Water Quality Facility Analysis and Design ........... 12 Performance Standards ...................................................................................................................... 12 Proposed Flow Control and Runoff Treatment BMPs ........................................................................ 13 Special Reports and Studies.................................................................. 16 Other Permits .......................................................................................... 17 Section 7—CSWPP Analysis and Design .................................................................. 17 Olympic Discovery Trail Stormwater Site Plan Report Otak APPENDICES Appendix A: Site Maps Appendix B: Flow Charts for Requirements Appendix C: Proposed Surfaces Exhibits Appendix D: Plans (Provided Under Separate Cover) Appendix E: WWHM Model Documentation Appendix F: Culvert Sizing Memorandum Appendix G: Geotechnical Report Appendix H: Downstream Analysis Appendix I: Operations and Maintenance Manual Olympic Discovery Trail Stormwater Site Plan Report Otak 5 Introduction The purpose of this project is to provide a new paved segment of the multi-use Olympic Discovery Trail. The project is proposed by Jefferson County Public Works. This report presents the applicable stormwater management requirements for the project and the analysis and design of proposed stormwater management improvements. The proposed trail corridor is within the right-of-way of Four Corners Road/ Discovery Road (Discovery Road becomes Four Corners Road when heading east) within Jefferson County as shown on the Figure 1-Vicinity Map in Appendix A. Starting at the south end of Larry Scott Trail at Milo Curry Road, a pedestrian trail runs east along 4 Corners Road/ Discovery Road for 0.5 miles, then runs south adjacent to an existing utility corridor parallel to Highway 20 for approximately 2 miles, then runs east parallel to Anderson Lake Road for approximately 0.4 miles, ending at Anderson Lake State Park. An equestrian trail begins where the proposed pedestrian trail crosses Four Corners Road / Discovery Road approximately 0.5 miles from the start of the proposed pedestrian trail. It is mostly adjacent to the pedestrian trail except where it is co-located with the access road, approximately STA 64+50 to 139+00. The entire project limits encompass approximately 22.73 acres. Within the project limits, there are a total of six (6) existing stream roadway culvert crossings. The 6 culverts cross under the dirt road within the utility corridor parallel to Highway 20 convey and stormwater runoff through drainages that are not typed as fish bearing streams. Design References The trail is proposed within the right of way road easement for which drainage systems are maintained by Jefferson County. The stormwater drainage design will follow the Department of Ecology 2019 Stormwater Management Manual for Western Washington (SMMWW) and applicable Jefferson County Code for definitions. Culverts within the SR20 WSDOT right-of-way will be designed using WSDOT standards. Existing Site Conditions The conditions of the site along the trail corridor consist of Discovery Road and Four Corners Rd, two- lane roads that runs primarily west-east and a dirt maintenance road that runs north-south along the project limits. Four Corners Road/ Discovery Road runs adjacent to rural residential land and businesses including a gas station, an automobile salvage yard, and a storage center. Four Corners Road/ Discovery Road has existing intermittent grass lined ditches on the north side of the road to convey runoff from the roadway. The proposed trail corridor runs parallel to Four Corners Road/ Discovery Road primarily along the north side of the roadway and crosses to the south side of the road at the Jefferson Transit Center. Further south, the trail corridor runs north-south to the east of a dirt maintenance road then west-east to Anderson Lake State Park, with no existing ditches to convey runoff. There are six existing culverts crossing under the dirt road within the project area. Most of the proposed trail in this section has grass and shrubs along the utility corridor and trees to the east with limited overstory. Parts of the proposed trail pass through the forested area. There are wetlands that have been delineated within the project area Olympic Discovery Trail Stormwater Site Plan Report Otak 6 which are documented in a separate Wetland and Stream Delineation Report (Section 5 – Special Reports). Site soils are mapped as Tukey gravelly loam, Agnew silt loam, Hoypus gravelly sandy loam, and Cassolary sandy loam by the Natural Resources Conservation Service (NRCS) (Figure 2 in Appendix A). The geotechnical report for the project has detail on soil characteristics and infiltration capacity. Generally, the soils along the north portion of the project are permeable, whereas the south soils are impermeable. The Geotechnical report is included in Appendix G. Proposed Site Conditions The proposed trail will be approximately three (3) miles in length from the south end of Larry Scott Trail at Milo Curry Road running east and south to Anderson State Lake Park. Figure 3 in Appendix A shows the project extents. The proposed improvement consists of an 8 to 10-foot-wide impervious paved asphalt trail with 1 to 2-foot gravel shoulders to each side. At some locations, the trail shoulder is increased to 4- feet on one side to accommodate equestrian use. As the trail crosses numerous private driveways, grading improvements are proposed to maintain driveway access across the trail. The majority of the trail improvements are within existing vegetated areas. Where the equestrian route deviates from the paved trail corridor, the project also includes a 4-foot wide equestrian trail consisting of compacted natural surfacing. At other locations, the equestrian route will follow a maintenance road that is existing, except for some areas where this project will re-route the gravel maintenance road. The proposed drainage approach includes predominantly dispersing runoff from the new trail by sheet flow dispersion or collecting in shallow swales and re-dispersing into natural vegetated areas. Where dispersion is not feasible, infiltration facilities are proposed immediately adjacent to the trail that receive sheet flow runoff and infiltrate into native soils below ground. At locations where the trail runoff will collect in the same ditch as the roadway runoff (and mix), bioretention swales are proposed to provide runoff treatment prior to infiltration. TDA Threshold Areas There are nine Threshold Discharge Areas (TDAs) along the proposed project area. In order to determine the TDA boundaries, LIDAR topography was analyzed to determine which segments of the trail drain to the west toward Puget Sound without combining within ¼ mile with other trail runoff. The TDA boundaries along the trail are shown on Figure 4 in Appendix A. The total area and hard surface areas within each TDA are summarized in Table 1 below. Olympic Discovery Trail Stormwater Site Plan Report Otak 7 Table 1—Threshold Discharge Area Summary Table TDAs Areas (SF) 1 2 3 4 5 6 7 8 9 Total New Impervious 30,140 sf 47,740 sf 10,910 sf 11,730 sf 10,480 sf 16,270 sf 30,270 sf 28,550 sf 57,500 sf 243,590 sf Replaced Impervious 0 sf 0 sf 320 sf 120 sf 220 sf 0 sf 1,290 sf 5,750 sf 9,430 sf 17,130 sf Total Area 30,140 sf 47,740 sf 11,230 sf 11,850 sf 10,700 sf 16,270 sf 31,560 sf 34,300 sf 66,930 sf - Appendix C shows details of the proposed surfaces used to size the bioretention swales. Olympic Discovery Trail Stormwater Site Plan Report Otak 8 Stormwater Management Requirements Assessment Applicability of Minimum Requirements The project is classified as new development and proposes greater than 5,000 square feet of new and replaced hard surface, therefore, Minimum Requirements 1-9 apply to all new and replaced hard surfaces and converted vegetation areas. See the flowchart in Figure 1 in Appendix B. The following describes how the project will meet the applicable minimum requirements. Minimum Requirement 1 Preparation of Stormwater Site Plans A Full Drainage Review will be required for the Olympic Discovery Trail project. This report will meet the Stormwater Site Plan requirement and will present all information required in the 2019 SWMMWW. Minimum Requirement 2 Construction Stormwater Pollution Prevention Plan (CSWPPP) The CSWPPP is described in Section 7 of this report and the Temporary Erosion and Sediment Control (TESC) Plan is presented in the construction plans on sheets 2.01-2.18. Minimum Requirement 3 Source Control of Pollution All applicable source control BMPs during construction and following construction shall be designed and maintained per Ecology 2019 SWMMWW Volume IV. The project includes pedestrian trail improvements only and does not include most of the structural, operational, or urban uses listed in Volume IV. The applicable Source Control BMPs include regular operation and maintenance practices that the County is required to implement through the NPDES Permit. Minimum Requirement 4 Preservation of Natural Drainage System and Outfalls The natural drainage system patterns and outfalls will be preserved. To allow for off-site areas to continue to drain across the proposed trail, eighteen (18) culverts are proposed along the proposed trail. These culverts are located at existing topographic lows, where warranted based on proposed grading and at locations where existing culvert crossings will be replaced or existing drainage will be maintained. Appendix F – Culvert Sizing Memorandum has details on these crossings. Minimum Requirement 5 On-Site Stormwater Management Based on Figure I-3.3. Flow Chart for Determining MR #5 Requirements, this project must meet the LID Performance Standard. See the flow chart as Figure 2 in Appendix B. Olympic Discovery Trail Stormwater Site Plan Report Otak 9 Much of the trail area will be fully dispersed via sheet flow into natural vegetated areas and is therefore, considered ineffective surface. For the effective surfaces, flow control BMPs will be used to meet the LID Performance Standard. The proposed flow control BMPs include infiltration trenches and bioretention swales with infiltration trenches. The infiltration facilities will be sized for infiltration of all flows through the 100-yr recurrence event. Permeable pavement is considered infeasible due to incompatibility with bike use on the trail and the likelihood of moss/organics growth that can occur in permeable pavements in heavily forested (shaded) areas, which reduces permeability of the pavement surface. BMP T5.13 Post Construction Soil Quality and Depth will be used for all landscape restoration of disturbed areas. Minimum Requirement 6 Runoff Treatment The project includes trail surfacing only which is considered non-pollution generating. However, beginning near STA 157+00 along the trail alignment, the trail is adjacent to vehicular roadways including Four Corners Road and Discovery Road. At locations where the trail runoff will collect in the same ditch as the roadway runoff (and mix), bioretention swales are proposed to provide runoff treatment prior to infiltration. Following the flowchart in Appendix B Figure 3, bioretention is an appropriate runoff treatment BMP. The BMP is modeled in WWHM as bioretention with native infiltration. The infiltration trench is used to provide Runoff Treatment and contains a bioretention soil mix treatment layer as part of the BMP. The infiltration trench is sized to meet the LID Performance Standard or is designed to infiltrate the full influent file. Minimum Requirement 7 Flow Control The project as a whole includes greater than 5,000 sf of new impervious surface, therefore, the flow control requirement applies. Per Vol I Section I-3.4.7 of the SWMMWW, the TDA threshold of 10,000 sf has also been analyzed for each of the nine TDAs. As shown in Table 1 in Section 1, each TDA includes more than 10,000 sf of new impervious surface. Where feasible, new impervious surface will be fully dispersed via sheet flow dispersion into natural vegetated areas. Sheet flow runoff from the trail can be considered fully-dispersed and not subject to further flow control measures if the flow path, soils, and vegetation meet the requirements within 2019 SWMMWW Vol. V Ch. 3 for Full Dispersion by Sheet Flow from Uncollected, Unconcentrated Runoff into the Dispersion Area (BMPT5.30). The most feasible location for dispersion is within areas containing Outwash soils (initial saturated conductivity rate of 4-inches per hour or greater.) If the length of the impervious area is up to 20 feet, the dispersion area flow path length must be 10 feet. The width of the dispersion area should match the impervious width. In areas outside Outwash soils, for every 1 foot of flow path length across the impervious surface, the flow path length through the dispersion area must be 6.5 feet (for example this equates to 65 feet for a 10-foot-wide trail) with a minimum length of 100 feet. In areas where the trail runoff will be collected in a ditch and then re-dispersed, the ditch discharge and flow path must meet the requirements for Full Dispersion of Channelized (Collected and Re-dispersed) Stormwater into the Dispersion Area. Where the trail sheet flows onto fill slopes, the slopes will have soil Olympic Discovery Trail Stormwater Site Plan Report Otak 10 and plantings complying with Full Dispersion by Engineered Dispersion. Dispersion on slopes over 15% must be approved by a geotechnical engineer or engineering geologist. Impervious surfaces that are “fully dispersed” are not considered “effective” surface and are not subject to further flow control requirements. For areas of trail that cannot be fully dispersed, infiltration trenches immediately adjacent to the trail are proposed to collect sheet flow runoff and infiltrate into native soils. Minimum Requirement 8 Wetlands Protection Based on the Critical Areas Stewardship Plan (CASP) (Otak, 2023), there are 21 wetlands, categorized with Ecology Ratings of 3 and 4, identified within the study area. The CASP documents mitigation sequencing to avoid, minimize, restore, and compensate for impacts to critical areas to the greatest extent possible. Restoration opportunities have been maximized on site to increase the ecological functions of the wetlands, streams, and their buffers so that the project will not result in a loss of wetland function, value or area. The trail alignment has been designed to avoid direct wetland and buffer impacts to the maximum extent feasible. By locating sections of the proposed pedestrian and equestrian trails within the footprint of the existing utility access road, impacts to wetlands and wetland buffer have been avoided and minimized. The proposed CASP and compensatory wetland and buffer mitigation plan proposes a combination of buffer addition (e.g., averaging and preservation), buffer restoration, buffer enhancement, wetland creation, and wetland enhancement. Permanent and temporary wetland and buffer impacts will be fully offset on-site within the project area. Minimum Requirement 9 Operation and Maintenance An operations and maintenance manual is required for flow control and water quality facilities and on-site stormwater management BMPs. An operations and maintenance manual will be included for the bioretention swales as a part of this report at a later phase of design. Appendix I. Olympic Discovery Trail Stormwater Site Plan Report Otak 11 Off-site Analysis A downstream analysis was conducted in the field to assess the condition of existing drainage systems for one-quarter mile downstream of the project discharge locations. No erosion, capacity, or flooding issues were noted downstream. This analysis is included in Appendix H. Runoff from the trail will be dispersed and infiltrated. Impervious surfaces that are “fully dispersed” are not considered “effective” surface and are not subject to further flow control requirements. The trail runoff for the south portion of the project will be dispersed into the natural vegetation along the utility corridor. The trail runoff adjacent to Four Corners/Discovery Road will be infiltrated. A portion of the existing road runoff will also be infiltrated resulting in a small decrease in overall runoff volumes in those locations. Olympic Discovery Trail Stormwater Site Plan Report Otak 12 Flow Control and Water Quality Facility Analysis and Design The facility modeling and summary of results are provided in Appendix E. Modeling was conducted using the Western Washington Hydrologic Model (WWHM 2012). For sizing the bioretention and infiltration facilities, the predeveloped condition for the site was input as forested in the model for trail, driveways, and existing pervious areas. A conservative approach was used to estimate the road areas for the predeveloped conditions. This was done by comparing the existing road to the proposed trail, and then choosing the value of the smaller area - the remaining area was modeled as forested. Less existing impervious area in the predeveloped conditions gives lower flow targets and is therefore conservative. Performance Standards FLOW CONTROL-INFILTRATION For areas of the new non-pollution generating trail surface that will not be fully dispersed, infiltration trenches are proposed that will be sized to the LID Performance Standard. The infiltration trenches will be immediately adjacent to the asphalt trail surface so they receive direct sheet flow runoff at the surface. For areas where the trail is adjacent to a pollution-generating roadway, and the trail runoff will mix with the roadway runoff at the roadway edge, a bioretention swale with infiltration trench is proposed to provide runoff treatment and infiltration. The infiltration trench is sized to the LID Performance Standard or to infiltrate fully. The bioretention swales with infiltration trenches are adjacent to the trail and will receive direct sheet flow runoff at the surface. According to the geotechnical report (Appendix G), the southern portion of the site (STA 0+00 to STA 130+00) is generally underlain by relatively impermeable glacial till near the proposed trail elevation. The central portion of the Site (STA 130+00 to STA 145+00) is mostly underlain by moderately permeable glacial continental drift deposits near the proposed trail elevation. The northern portion of the Site (STA 160+ to STA 180+00) is mostly underlain by coarse-grained glaciomarine outwash deposits, apart from an isolated section between approximately STA 145+00 and STA 160+00 where the coarse grained glaciomarine outwash deposits are overlain by up to 5 feet fine-grained glaciomarine outwash deposits. Geotechnical investigation for assessment of infiltration capacity of native soils was performed. Based on soil borings and a pilot infiltration test (PIT), the geotechnical report concluded that the soils south of Station 130+00 (along the existing utility corridor) are not suitable for infiltration. The soils from Station 130+00 to 145+00 are suitable for infiltration, the soil between Station 145+00 and 160+00 will infiltrate starting at 6 feet below ground surface, and soils from station 160+00 to 180+00 are suitable for infiltration. The recommended design infiltration rate is 0.3 inches/hour. This rate is appropriate starting 6 feet below the ground surface. FLOW CONTROL – FULL DISPERSION Impervious surfaces that are “fully dispersed” are not considered “effective” surface and are not subject to further flow control requirements. Three types of full dispersion are used on the project: Full Dispersion by Sheet Flow from Uncollected, Unconcentrated Runoff, Full Dispersion of Channelized (Collected and Olympic Discovery Trail Stormwater Site Plan Report Otak 13 Re-dispersed) flow and Full Dispersion by Engineered Dispersion. Table 2 shows the length of trail dispersed by type per threshold discharge area. Full Dispersion by Sheet Flow from Uncollected, Unconcentrated Runoff was used wherever the trail was close to existing grade or in a short fill section. The trail would sheet flow over a 2-foot gravel shoulder into the native vegetation along the corridor. Soil types for majority of the locations along the utility corridor require a minimum 100-foot dispersion length. The existing native trees and vegetation are adequate for dispersion in these areas. Full Dispersion of Channelized (Collected and Re-dispersed) flow was used in cut sections where the runoff from the adjacent side slopes and trail was collected in a shallow swale and then dispersed into the adjacent native vegetation within the existing utility corridor. Rock pads were used to redisperse flow at discharge points with up to 0.2 cfs discharge for the peak 100-year flow. This equates to 13,000 SF (1,300 LF of 10-foot trail) based on the site hydrology per WWHM. Wood chip filled wattles per WSDOT Standard Plan I-30.20-02 were used to further disperse the flow. Full Dispersion by Engineered Dispersion was used in areas with deeper fill slopes. Full dispersion by sheet flow was used to disperse flow from the trail through a 2-foot gravel shoulder onto the fill slopes. The slopes were amended with compost and planted. The geotechnical report recommends permanent fill slopes be constructed no steeper then 2H:1V and be protected from surficial erosion with hydroseeding. Permanent seeding may include native plants and grasses (applied by hydroseed with tackifier) with a temporary biodegradable erosion control blanket to cover the hydroseed and provide temporary protection until the grasses grow through the blanket. Where possible, the native topsoil should be retained and incorporated into the slopes prior to seeding. Ecology’s SMMWW recommends permanent seeding and erosion control blankets be designed and installed in accordance with its BMPs C120 and C122, respectively. The flow collected and dispersed in these fill sections was limited to that from the 10-foot trail and shoulder. The vegetation beyond the fill slopes will also be adequate for dispersion. RUNOFF TREATMENT The bioretention swales were sized to treat at least 91% of the total runoff volume determine with the WWHM 2012 model. The water quality modeling results for each of the bioretention trenches are at 100 percent filtered to demonstrate compliance. Proposed Flow Control and Runoff Treatment BMPs The proposed flow control and runoff treatment BMPs within each TDA are summarized in Table 2. The facility locations are shown on the Plans in Appendix D on sheets 3.01-3.35 and details on sheet 3.53. The final proposed facility design dimensions are shown in Table 3 and summary of modeling results is included in Appendix E. Olympic Discovery Trail Stormwater Site Plan Report Otak 14 Table 2—Proposed Flow Control and Runoff Treatment BMPs TDAs BMP Facility Type 1 2 3 4 5 6 7 8 9 Shallow Infiltration Trench (Flow Control to bioretention) 0LF 0LF 0LF 0LF 0LF 0LF 0LF 0LF 285LF Infiltration Trench (Flow Control) 0LF 0LF 0LF 0LF 0LF 0LF 0LF 0LF 627 LF Full Dispersion by Sheet Flow from Uncollected, Unconcentrated Runoff (Flow Control) 0LF 0LF 0LF 0LF 0LF 0LF 0LF 223 LF 1910 LF Full Dispersion by Engineered Dispersion (Flow Control) 1,129LF 1,021LF 585LF 480LF 170LF 686LF 1287LF 274LF 161LF Full Dispersion of Channelized (Collected and Re- dispersed) flow (Flow Control) 766LF 2,018LF 159LF 388LF 585LF 605LF 331LF 0LF 41LF Bioretention Swale with Infiltration Trench (Flow Control and Runoff Treatment) 0LF 0LF 0LF 0LF 0LF 0LF 0LF 0LF 2425 LF Olympic Discovery Trail Stormwater Site Plan Report Otak 15 Table 3—Proposed Flow Control and Runoff Treatment Sizing Along S Discovery Road/ Four Corners Road Stationing Length (ft) BMP Facility Type Bioretention Bottom Width (ft) Pea Gravel Depth (ft) 156+37.49 - 158+87 249.5 Bioretention Trench 3 6.5 167+87.01- 168+54.36 67.4 Bioretention Trench 4 5.5 168+96.69- 170+08.23 111.5 Bioretention Trench 4 5.5 170+48.49- 171+16.87 68.4 Bioretention Trench 4 5.5 171+55.64- 172+36.32 80.7 Bioretention Trench 4 5.5 172+70- 175+55 285.0 Shallow Infiltration Trench 2 2 175+65.93- 175+95.92 30.0 Bioretention Trench 4 5.5 176+72.71- 177+38.28 65.6 Bioretention Trench 4 5.5 178+27.33- 181+48.90 321.6 Bioretention Trench 4 5.5 Olympic Discovery Trail Stormwater Site Plan Report Otak 16 Special Reports and Studies ▪ A geotechnical investigation for soil suitability for infiltration, by Aspect, is included in Appendix G ▪ Olympic Discovery Trail – Larry Scott Trail to Anderson Lake State Park Wetland and Stream Delineation Report. Otak, October 9, 2023. Provided under separate cover. ▪ Olympic Discovery Trail - Conceptual CASP and Wetland and Buffer Mitigation Plan USACE Project No. NWS-2023-464, Otak, October 20, 2023. Provided under separate cover. Olympic Discovery Trail Stormwater Site Plan Report Otak 17 Other Permits Table 1 shows some of the typical permits required for this project. This is not intended to show all the local, state, and federal permits required. Table 1—Other Required Permits Agency Permit U.S. Army Corps of Engineers Section 404 and 401 WA Department of Fish and Wildlife Hydraulic Project Approval WA Department of Ecology Construction Stormwater General Permit WA Department of Ecology UIC Well Registration(1) (1) Ecology has requirements for which facilities require Underground Injection Control Well Registration. The infiltration trenches along Four Corners Road have non-perforated underdrain overflows that connect them in series. According to Department Ecology, an injection well is designed and built: • Deeper than the largest surface dimension. • To contain an assemblage of perforated pipe. • As an improved sinkhole. • As a chamber or vault designed to capture and infiltrate stormwater Examples from Ecology include: sump pump, drain field, an infiltration trench containing perforated pipe, a stormwater chamber, and temporary injection points. The connecting pipes between the infiltration trenches are not perforated for this project. Therefore, the infiltration trenches for this project do not meet the Ecology definition of an injection well. Olympic Discovery Trail Stormwater Site Plan Report Otak 18 Section 7—CSWPP Analysis and Design ESC Plan Analysis and Design The ESC plan contains the following required elements: Element 1: Preserve Vegetation/Clearing Limits The area of clearing onsite will be minimized per BMPs C101: Preserving Natural Vegetation and C102: Buffer Zones to protect the adjacent wetland and stream. These will be noted via BMP C103: High- Visibility Fence. Element 2: Establish Construction Access Access to the site will be via paved, stabilized roadway. If site conditions warrant, BMP C106: Wheel wash will also be used. Element 3: Control Flow Rates Drainage onsite will be collected and conveyed via interceptor swales using BMP C207: Check Dams as necessary to prevent scouring. Onsite stormwater will discharge via BMP C209 Outlet Protection. Element 4: Install Sediment Controls Onsite surface flows will be prevented from leaving the site uncontrolled using BMPs C233: Silt Fence and BMP C235: Wattles. Element 5: Stabilize Soils Exposed soils onsite will be stabilized within the required timeframe based on the time of year and weather conditions. These methods include: • BMP C120: Temporary and Permanent Seeding • BMP C121: Mulching • BMP C126: Polyacrylamide (PAM) for Soil Erosion Protection • BMP C140: Dust Control This list is not exhaustive and other applicable BMPs may be used. Element 6: Protect Slopes Steep slopes onsite will be protected and stabilized using the following BMPs. • BMP C121: Mulching • BMP C122: Nets and Blankets • BMP C130 Surface Roughening • BMP C235: Wattles This list is not exhaustive and other applicable BMPs may be used. Element 7: Protect Drain Inlets Inlets will be protected using methods detailed in BMP C220: Inlet Protection. Element 8: Stabilize Channels and Outlets Channels and outlets will be stabilized using the following BMPs. • BMP C122: Nets and Blankets Olympic Discovery Trail Stormwater Site Plan Report Otak 19 • BMP C207: Check Dams • BMP C209: Outlet Protection • BMP C235: Wattles Element 9: Control Pollutants Onsite storage of pollutants will occur using BMP C153: Material Delivery, Storage, and Containment. Element 10: Control De-Watering Construction de-watering activities are not anticipated for the project site Element 11: Maintain BMPs BMP maintenance will occur under a CESCL per BMP C160: Certified Erosion and Sediment Control Lead. Sufficient materials will be kept onsite per BMP C150: Materials on Hand Element 12: Manage the Project The site will be managed according to BMP C162: Scheduling. A CESCL will lead all onsite construction stormwater management. Element 13: Protect Low Impact Development BMPs Low Impact Development BMPs will be protected throughout constructing using the BMPs specified above. Additionally, the areas will be protected from intrusion from vehicles or other compaction throughout construction. SWPPS Plan and Design Activities that could contribute pollutants to stormwater during construction include the following: ▪ Material Delivery and Storage will occur in a construction staging area constructed of compacted gravel per BMP C153. Because the project disturbs more than one acre, it will require an NPDES General Permit for Construction. Appendices Appendix A: Site Maps Appendix B: Flow Charts for Requirements Appendix C: Proposed Surfaces Exhibits Appendix D: 95% Plans (Provided Under Separate Cover) Appendix E: WWHM model documentation Appendix F: Culvert Sizing Memorandum Appendix G: Geotechnical Report – Draft Appendix H: Downstream Analysis Appendix I: Operations and Maintenance Manual Appendix A: Site Maps Figure 1: Vicinity Map Figure 2: Soils Map Figure 3: Project Map Figure 4: Threshold Discharge Areas JEFFERSON COUNTY, WA VICINITY MAP Service Layer Credits: World Street Map: Island County, WA State Parks GIS, Esri, HERE,Garmin, SafeGraph, GeoTechnologies, Inc, METI/NASA, USGS, Bureau of LandManagement, EPA, NPS, USDAWorld Street Map: Island County, WA State Parks GIS, Esri, HERE, Garmin, SafeGraph, FAO, METI/NASA, USGS, Bureau of Land Management, EPA, NPSWSDOT - Public Roads: FIGURE 1 OLYMPIC DISCOVERY TRAIL - LARRY SCOTT TRAIL TO ANDERSON LAKE STATE PARK Data Sources:Date: 1/19/2023Disclaimer: This data is not to survey accuracy and is meant for planning purposes only. \\red-ae.otak.com\proj\Project\33400\33425\CADD\GIS\APRX\33425_VicintyMap.aprx Protection Island Maynard Gardiner Discovery Bay FairmontUncas Admiralty Inlet 20 Port Townsend Oak Bay DiscoveryBay PortTownsend 20 20Cape G e o r g e Rd RhodyDrAi r por t Cu t off RdUS Naval Reservation Indian Island ParkAndersonLake State Park Fort Flagler Historical State Park Fort Townsend Historical State Park Marrowstone Glen Cove Port Hadlock Chimacum Four Corners Irondale Tukey Port Discovery Dungeness National Wildlife Refuge Sequim 52520 101 PortTownsend 104 101 Port Ludlow Project Area Legend 0 15,000 30,000 feet ¸N 0 500 1,000 feet ¸Proposed Pedestrian Trail Proposed Equestrian Trail Artificial connector Watercourse Water body interior line Soil Names Agnew silt loam Alderwood gravelly sandy loam Cassolary sandy loam Dick loamy sand Hoypus gravelly sandy loam Swantown gravelly loam Tukey gravelly loam JEFFERSON COUNTY, WA SOIL MAP FIGURE 2 OLYMPIC DISCOVERY TRAIL - LARRY SCOTT TRAIL TO ANDERSON LAKE STATE PARK Data Sources: NRCSDate: 12/7/2023Disclaimer: This data is not to survey accuracy and is meant for planning purposes only. \\otak.com\OTAK\PROJECT\33400\33425\CADD\GIS\APRX\33425_Soil_Fig2_Updated12072023.aprx Legend N FIGURE 3 N 320280240200 16012080 380340300220180 4 0 0 260280260140120100 604020 3604003803403 2 0 30030020080 380400360360280300300 300 220180140 1 2 0 140 80140 0 500 1,000 feet ¸ TDA 1 TDA 2 TDA 3 TDA 4 TDA 5 TDA 6 TDA 8 TDA 7 TDA 9 Discovery Bay JEFFERSON COUNTY, WA TDA MAP FIGURE X OLYMPIC DISCOVERY TRAIL - LARRY SCOTT TRAIL TO ANDERSON LAKE STATE PARK Data Sources: NRCSDate: 1/19/2023Disclaimer: This data is not to survey accuracy and is meant for planning purposes only. \\red-ae.otak.com\proj\Project\33400\33425\CADD\GIS\APRX\33425_TDA.aprx Proposed Pedestrian Trail Proposed Equestrian Trail TDA_Lines Culverts - Existing and Proposed Water Courses (FP) Type F Type N, Np, Ns 10-ft Contours LegendFIGURE 4 N Appendix B: Flow Charts for Requirements Figure 1: Flow Chart for Determining Minimum Requirements for New Development Figure 2: Flow Chart for Determining MR #5 Requirements Figure 3: Runoff Treatment BMP Selection Flow Chart Appendix C: Proposed Surfaces Exhibits XXXXXXXXXXXXR/WR/WR/WR/WR/W540055005600570058003C 555683C 5637323C 53 873T 554783T 56 6333T 5360703T 54742R/WR/WR/W4040XXXXXXXR/WR/WR/WR/WR/W4 005000500520053003C 50 03C 5003 83C 5 8603C 527 6 3C 53 873T 533053T 502263T 5238363T 536070R/WR/WR/WR/WR/W3636SCALE IN FEET200204025350ATC+LINE SEE %EL2: STA 5000ATC+LINE SEE ':* 24 STA 46000ATC+LINE SEE ':* 26 STA 55500ATC+LINE SEE A%29E STA 500 2023 2TA. INC2TA. 352-ECT N80%E53ORWWHG SHS 07 2023 2 8SP C ?WHPS?AF3XEOLVKB220 2?20282T'BT'ABS85FACESB5HY3GZJ LD\RXW NDPH 25'5A:IN* N2S+EET5E9ISI2N C200ENTSN2%<5E9IE:'ATE'ESI*NE5'5A:N %<C+EC.E' %<Know what'sbelow.before you dig.Call5TITLE2FXX24 :LOORZV 5RDG NE SXLWH 2005HGPRQG :A 80524258224446ZZZRWDNFRP334252L<03IC 'ISC29E5< T5AIL AN'E5S2N LA.E C2NNECTI2NC28NT< 52A' 352-ECT 80 8 35C2 *5ANT 352-ECT N2 2074535ELI0INA5< 60 3LANS -AN8A5< 2023 325TI2N 2F SEC 32 33 T 30N 5 : SEC 4 T 2 N 5 :-EFFE5S2N C28NT<'E3A5T0ENT 2F38%LIC :25.SNE: 3*IS5E3LACE' 3*ISNE: N3*IS5E3LACE' N3*IST'A I03E59I28S S85FACE T2TALSNE: 3*IS SF 05E3LACE' 3*IS SF 72NE: N3*IS SF 3875E3LACE' N3*IS SF 0ELE9ATE' %2A5':AL. A5EA SF 035232SE' S85FACES EX+I%ITTDEOH RQO\ LQFOXGHVKDWFKHG DUHDV QRW XHGRXW 2,167.97 sfBegin Bioretention1,230.68 sf397.09 sf2,043.45 sf ROADTRAILGRASSDRIVEWAY 6300640065006600670068003C 66 73C 66353 3C 648403C 6366 33T 633273T 675203T 6668373T 656233T 63 27635C 6275535C 65220038363838R/WR/WR/WR/W5 006000600620063003C 62 753C 5885353C 5 525 3T 633273T 5 23T 5 84035C 6275540403838 2023 2TA. INC2TA. 352-ECT N80%E53ORWWHG SHS 07 2023 2 8SP C ?WHPS?AF3XEOLVKB220 2?20282T'BT'ABS85FACESB5HY3GZJ LD\RXW NDPH 26'5A:IN* N2S+EET5E9ISI2N C200ENTSN2%<5E9IE:'ATE'ESI*NE5'5A:N %<C+EC.E' %<Know what'sbelow.before you dig.Call5TITLE2FXX24 :LOORZV 5RDG NE SXLWH 2005HGPRQG :A 80524258224446ZZZRWDNFRP334252L<03IC 'ISC29E5< T5AIL AN'E5S2N LA.E C2NNECTI2NC28NT< 52A' 352-ECT 80 8 35C2 *5ANT 352-ECT N2 2074535ELI0INA5< 60 3LANS -AN8A5< 2023 325TI2N 2F SEC 32 33 T 30N 5 : SEC 4 T 2 N 5 :-EFFE5S2N C28NT<'E3A5T0ENT 2F38%LIC :25.SSCALE IN FEET200204026360ATC+LINE SEE %EL2: STA 60500ATC+LINE SEE ':* 25 STA 55500ATC+LINE SEE ':* 27 STA 65500ATC+LINE SEE A%29E STA 6050NE: 3*IS5E3LACE' 3*ISNE: N3*IS5E3LACE' N3*IST'A I03E59I28S S85FACE T2TALSNE: 3*IS SF 05E3LACE' 3*IS SF 38NE: N3*IS SF 2235E3LACE' N3*IS SF 0ELE9ATE' %2A5':AL. A5EA SF 035232SE' S85FACES EX+I%IT 877.08 sfend bioretentionBioretentionStart605.15 sf455.87 sf176.41 sf706.84 sf488.7 sf93.89 sf673.02 sf ROADTRAILGRASSDRIVEWAY 740075007600770078003C 773353C 757 553T 7550 63T 7660503CC 75 08335C 73 435C 7546040406 007000700720073003C 7203733C 730033T 72803CC 72675735C 73 43838 2023 2TA. INC2TA. 352-ECT N80%E53ORWWHG SHS 07 2023 2 8SP C ?WHPS?AF3XEOLVKB220 2?20282T'BT'ABS85FACESB5HY3GZJ LD\RXW NDPH 27'5A:IN* N2S+EET5E9ISI2N C200ENTSN2%<5E9IE:'ATE'ESI*NE5'5A:N %<C+EC.E' %<Know what'sbelow.before you dig.Call5TITLE2FXX24 :LOORZV 5RDG NE SXLWH 2005HGPRQG :A 80524258224446ZZZRWDNFRP334252L<03IC 'ISC29E5< T5AIL AN'E5S2N LA.E C2NNECTI2NC28NT< 52A' 352-ECT 80 8 35C2 *5ANT 352-ECT N2 2074535ELI0INA5< 60 3LANS -AN8A5< 2023 325TI2N 2F SEC 32 33 T 30N 5 : SEC 4 T 2 N 5 :-EFFE5S2N C28NT<'E3A5T0ENT 2F38%LIC :25.SSCALE IN FEET200204027370ATC+LINE SEE %EL2: STA 70500ATC+LINE SEE ':* 26 STA 65500ATC+LINE SEE ':* 28 STA 75500ATC+LINE SEE STA 7050NE: 3*IS5E3LACE' 3*ISNE: N3*IS5E3LACE' N3*IST'A I03E59I28S S85FACE T2TALSNE: 3*IS SF 05E3LACE' 3*IS SF 3540NE: N3*IS SF 83435E3LACE' N3*IS SF 0ELE9ATE' %2A5':AL. A5EA SF 035232SE' S85FACES EX+I%ITBio endBio startBio endBio startBio endBio endBio start111'-4 3/4"68'-4 3/4"80'-7 1/4"infiltration trenchBio startBio end798.1 sf3,271.18 sf445.35 sf675.94 sf2,456 sf1,007.4 sf450.11 sf2,577.65 sf1,438.12 sf325.29 sf305.08 sf1,819.23 sf1,021.67 sf947.01 sf2,014.5 sf262.24 sf490.27 sf1,158.89 sf975.94 sf1,145.24 sf174.9 sf1,610.09 sf2,379.7 sf ROADTRAILGRASSDRIVEWAY 7 00800080082008300E3 8322 3T 825883CC 820723032343638 2023 2TA. INC2TA. 352-ECT N80%E53ORWWHG SHS 07 2023 2 SP C ?WHPS?AF3XEOLVKB220 2?20282T'BT'ABS85FACESB5HY3GZJ LD\RXW NDPH 28'5A:IN* N2S+EET5E9ISI2N C200ENTSN2%<5E9IE:'ATE'ESI*NE5'5A:N %<C+EC.E' %<Know what'sbelow.before you dig.Call5TITLE2FXX24 :LOORZV 5RDG NE SXLWH 2005HGPRQG :A 80524258224446ZZZRWDNFRP334252L<03IC 'ISC29E5< T5AIL AN'E5S2N LA.E C2NNECTI2NC28NT< 52A' 352-ECT 80 8 35C2 *5ANT 352-ECT N2 2074535ELI0INA5< 60 3LANS -AN8A5< 2023 325TI2N 2F SEC 32 33 T 30N 5 : SEC 4 T 2 N 5 :-EFFE5S2N C28NT<'E3A5T0ENT 2F38%LIC :25.SSCALE IN FEET200204028380ATC+LINE SEE ':* 27 STA 7550NE: 3*IS5E3LACE' 3*ISNE: N3*IS5E3LACE' N3*IST'A I03E59I28S S85FACE T2TALSNE: 3*IS SF 05E3LACE' 3*IS SF 32 NE: N3*IS SF 37385E3LACE' N3*IS SF 0ELE9ATE' %2A5':AL. A5EA SF 035232SE' S85FACES EX+I%ITBio startBio end5,722.82 sf4,147.55 sf ROADTRAILGRASSDRIVEWAY Appendix D: Plans (Provided Under Separate Cover) Appendix E: WWHM model documentation WWHM2012 PROJECT REPORT DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 2 General Model Information Project Name:WWHM_Road_disconnectedTrench_10122023 Site Name: Site Address: City: Report Date:11/21/2023 Gage:Port Angeles Data Start:1948/10/01 Data End:2009/09/30 Timestep:15 Minute Precip Scale:0.800 Version Date:2019/09/13 Version:4.2.17 POC Thresholds Low Flow Threshold for POC1:50 Percent of the 2 Year High Flow Threshold for POC1:50 Year DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 3 Landuse Basin Data Predeveloped Land Use Basin 156+37.49 - 158+87 Bypass:No GroundWater:No Pervious Land Use acre C, Forest, Flat 0.169215 Pervious Total 0.169215 Impervious Land Use acre ROADS FLAT 0.057645 Impervious Total 0.057645 Basin Total 0.22686 Element Flows To: Surface Interflow Groundwater DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 4 Basin 167+87.01-168.54.36 Bypass:No GroundWater:No Pervious Land Use acre C, Forest, Flat 0.047337 Pervious Total 0.047337 Impervious Land Use acre ROADS FLAT 0.020684 Impervious Total 0.020684 Basin Total 0.068021 Element Flows To: Surface Interflow Groundwater DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 5 Basin 168+96.69-170+08.23 Bypass:No GroundWater:No Pervious Land Use acre C, Forest, Flat 0.066644 Pervious Total 0.066644 Impervious Land Use acre ROADS FLAT 0.033012 Impervious Total 0.033012 Basin Total 0.099656 Element Flows To: Surface Interflow Groundwater DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 6 Basin 170+48.49- 171+16.87 Bypass:No GroundWater:No Pervious Land Use acre C, Forest, Flat 0.04876 Pervious Total 0.04876 Impervious Land Use acre ROADS FLAT 0.023462 Impervious Total 0.023462 Basin Total 0.072222 Element Flows To: Surface Interflow Groundwater DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 7 Basin 171+55.64-172+36.32 Bypass:No GroundWater:No Pervious Land Use acre C, Forest, Flat 0.052273 Pervious Total 0.052273 Impervious Land Use acre ROADS FLAT 0.02174 Impervious Total 0.02174 Basin Total 0.074013 Element Flows To: Surface Interflow Groundwater DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 8 Basin 172+70-175+55 Bypass:No GroundWater:No Pervious Land Use acre C, Forest, Flat 0.093411 Pervious Total 0.093411 Impervious Land Use acre ROADS FLAT 0.071901 Impervious Total 0.071901 Basin Total 0.165312 Element Flows To: Surface Interflow Groundwater DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 9 Basin 175+65.93-177+38.28 Bypass:No GroundWater:No Pervious Land Use acre C, Forest, Flat 0.143205 Pervious Total 0.143205 Impervious Land Use acre ROADS FLAT 0.037672 Impervious Total 0.037672 Basin Total 0.180877 Element Flows To: Surface Interflow Groundwater DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 10 Basin 178+27.33-181+48.90 Bypass:No GroundWater:No Pervious Land Use acre C, Forest, Flat 0.131359 Pervious Total 0.131359 Impervious Land Use acre ROADS FLAT 0.095225 Impervious Total 0.095225 Basin Total 0.226584 Element Flows To: Surface Interflow Groundwater DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 11 Mitigated Land Use Basin 156+37.49 - 158+87 Bypass:No GroundWater:No Pervious Land Use acre C, Lawn, Flat 0.064509 Pervious Total 0.064509 Impervious Land Use acre ROADS FLAT 0.09348 DRIVEWAYS FLAT 0.011226 SIDEWALKS FLAT 0.057645 Impervious Total 0.162351 Basin Total 0.22686 Element Flows To: Surface Interflow Groundwater Surface .49 - 158+87 Surface .49 - 158+87 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 12 Basin 167+87.01-168.54.36 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROADS FLAT 0.037006 DRIVEWAYS FLAT 0.010331 SIDEWALKS FLAT 0.020684 Impervious Total 0.068021 Basin Total 0.068021 Element Flows To: Surface Interflow Groundwater Surface 01-168.54.36 Surface 01-168.54.36 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 13 Basin 168+96.69-170+08.23 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROADS FLAT 0.059183 DRIVEWAYS FLAT 0.007461 SIDEWALKS FLAT 0.033012 Impervious Total 0.099656 Basin Total 0.099656 Element Flows To: Surface Interflow Groundwater Surface 69-170+08.23Surface 69-170+08.23 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 14 Basin 170+48.49- 171+16.87 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROADS FLAT 0.041758 DRIVEWAYS FLAT 0.007002 SIDEWALKS FLAT 0.023462 Impervious Total 0.072222 Basin Total 0.072222 Element Flows To: Surface Interflow Groundwater Surface 9- 171+16.87 Surface 9- 171+16.87 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 15 Basin 171+55.64-172+36.32 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROADS FLAT 0.046258 DRIVEWAYS FLAT 0.006015 SIDEWALKS FLAT 0.02174 Impervious Total 0.074013 Basin Total 0.074013 Element Flows To: Surface Interflow Groundwater Surface 64-172+36.32Surface 64-172+36.32 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 16 Basin172+70-175+55 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROADS FLAT 0.090312 SIDEWALKS FLAT 0.071901 Impervious Total 0.162213 Basin Total 0.162213 Element Flows To: Surface Interflow Groundwater Infiltration 172+70-175+55Infiltration 172+70-175+55 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 17 Basin 175+65.93-177+38.28 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROADS FLAT 0.090312 DRIVEWAYS FLAT 0.052893 SIDEWALKS FLAT 0.037672 Impervious Total 0.180877 Basin Total 0.180877 Element Flows To: Surface Interflow Groundwater Surface 93-177+38.28Surface 93-177+38.28 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 18 Basin 178+27.33-181+48.90 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROADS FLAT 0.131359 SIDEWALKS FLAT 0.095225 Impervious Total 0.226584 Basin Total 0.226584 Element Flows To: Surface Interflow Groundwater Surface 33-181+48.90Surface 33-181+48.90 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 19 Routing Elements Predeveloped Routing DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 20 Mitigated Routing Bioretention 156+37.49 - 158+87 Bottom Length: 249.51 ft. Bottom Width: 4.00 ft. Material thickness of first layer: 1.5 Material type for first layer: SMMWW 12 in/hr Material thickness of second layer: 6.5 Material type for second layer: GRAVEL Material thickness of third layer: 0 Material type for third layer: GRAVEL Infiltration On Infiltration rate:0.8 Infiltration safety factor:1 Total Volume Infiltrated (ac-ft.):13.458 Total Volume Through Riser (ac-ft.):0 Total Volume Through Facility (ac-ft.):13.458 Percent Infiltrated:100 Total Precip Applied to Facility:2.007 Total Evap From Facility:1.633 Underdrain not used Discharge Structure Riser Height:1 ft. Riser Diameter:24 in. Element Flows To: Outlet 1 Outlet 2 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.0229 0.0000 0.0000 0.0000 0.1099 0.0229 0.0012 0.0000 0.0000 0.2198 0.0229 0.0023 0.0000 0.0000 0.3297 0.0229 0.0035 0.0000 0.0002 0.4396 0.0229 0.0046 0.0000 0.0007 0.5495 0.0229 0.0058 0.0000 0.0008 0.6593 0.0229 0.0069 0.0000 0.0019 0.7692 0.0229 0.0081 0.0000 0.0019 0.8791 0.0229 0.0092 0.0000 0.0037 0.9890 0.0229 0.0104 0.0000 0.0037 1.0989 0.0229 0.0115 0.0000 0.0062 1.2088 0.0229 0.0127 0.0000 0.0064 1.3187 0.0229 0.0138 0.0000 0.0095 1.4286 0.0229 0.0150 0.0000 0.0100 1.5385 0.0229 0.0160 0.0000 0.0137 1.6484 0.0229 0.0171 0.0000 0.0145 1.7582 0.0229 0.0181 0.0000 0.0185 1.8681 0.0229 0.0191 0.0000 0.0185 1.9780 0.0229 0.0202 0.0000 0.0185 2.0879 0.0229 0.0212 0.0000 0.0185 2.1978 0.0229 0.0223 0.0000 0.0185 2.3077 0.0229 0.0233 0.0000 0.0185 2.4176 0.0229 0.0244 0.0000 0.0185 2.5275 0.0229 0.0254 0.0000 0.0185 2.6374 0.0229 0.0265 0.0000 0.0185 2.7473 0.0229 0.0275 0.0000 0.0185 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 21 2.8571 0.0229 0.0286 0.0000 0.0185 2.9670 0.0229 0.0296 0.0000 0.0185 3.0769 0.0229 0.0306 0.0000 0.0185 3.1868 0.0229 0.0317 0.0000 0.0185 3.2967 0.0229 0.0327 0.0000 0.0185 3.4066 0.0229 0.0338 0.0000 0.0185 3.5165 0.0229 0.0348 0.0000 0.0185 3.6264 0.0229 0.0359 0.0000 0.0185 3.7363 0.0229 0.0369 0.0000 0.0185 3.8462 0.0229 0.0380 0.0000 0.0185 3.9560 0.0229 0.0390 0.0000 0.0185 4.0659 0.0229 0.0400 0.0000 0.0185 4.1758 0.0229 0.0411 0.0000 0.0185 4.2857 0.0229 0.0421 0.0000 0.0185 4.3956 0.0229 0.0432 0.0000 0.0185 4.5055 0.0229 0.0442 0.0000 0.0185 4.6154 0.0229 0.0453 0.0000 0.0185 4.7253 0.0229 0.0463 0.0000 0.0185 4.8352 0.0229 0.0474 0.0000 0.0185 4.9451 0.0229 0.0484 0.0000 0.0185 5.0549 0.0229 0.0494 0.0000 0.0185 5.1648 0.0229 0.0505 0.0000 0.0185 5.2747 0.0229 0.0515 0.0000 0.0185 5.3846 0.0229 0.0526 0.0000 0.0185 5.4945 0.0229 0.0536 0.0000 0.0185 5.6044 0.0229 0.0547 0.0000 0.0185 5.7143 0.0229 0.0557 0.0000 0.0185 5.8242 0.0229 0.0568 0.0000 0.0185 5.9341 0.0229 0.0578 0.0000 0.0185 6.0440 0.0229 0.0589 0.0000 0.0185 6.1538 0.0229 0.0599 0.0000 0.0185 6.2637 0.0229 0.0609 0.0000 0.0185 6.3736 0.0229 0.0620 0.0000 0.0185 6.4835 0.0229 0.0630 0.0000 0.0185 6.5934 0.0229 0.0641 0.0000 0.0185 6.7033 0.0229 0.0651 0.0000 0.0185 6.8132 0.0229 0.0662 0.0000 0.0185 6.9231 0.0229 0.0672 0.0000 0.0185 7.0330 0.0229 0.0683 0.0000 0.0185 7.1429 0.0229 0.0693 0.0000 0.0185 7.2527 0.0229 0.0703 0.0000 0.0185 7.3626 0.0229 0.0714 0.0000 0.0185 7.4725 0.0229 0.0724 0.0000 0.0185 7.5824 0.0229 0.0735 0.0000 0.0185 7.6923 0.0229 0.0745 0.0000 0.0185 7.8022 0.0229 0.0756 0.0000 0.0185 7.9121 0.0229 0.0766 0.0000 0.0185 8.0000 0.0229 0.0775 0.0000 0.0185 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)To Amended(cfs)Infilt(cfs) 8.0000 0.0229 0.0775 0.0000 0.0185 0.0000 8.1099 0.0229 0.0800 0.0000 0.0185 0.0000 8.2198 0.0229 0.0825 0.0000 0.0185 0.0000 8.3297 0.0229 0.0850 0.0000 0.0185 0.0000 8.4396 0.0229 0.0875 0.0000 0.0185 0.0000 8.5495 0.0229 0.0900 0.0000 0.0185 0.0000 8.6593 0.0229 0.0926 0.0000 0.0185 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 22 8.7692 0.0229 0.0951 0.0000 0.0185 0.0000 8.8791 0.0229 0.0976 0.0000 0.0185 0.0000 8.9890 0.0229 0.1001 0.0000 0.0185 0.0000 9.0989 0.0229 0.1026 0.6592 0.0185 0.0000 9.2088 0.0229 0.1051 2.0109 0.0185 0.0000 9.3187 0.0229 0.1077 3.7318 0.0185 0.0000 9.4286 0.0229 0.1102 5.6376 0.0185 0.0000 9.5385 0.0229 0.1127 7.5423 0.0185 0.0000 9.6484 0.0229 0.1152 9.2649 0.0185 0.0000 9.7582 0.0229 0.1177 10.660 0.0185 0.0000 9.8681 0.0229 0.1203 11.664 0.0185 0.0000 9.9780 0.0229 0.1228 12.347 0.0185 0.0000 10.000 0.0229 0.1233 13.141 0.0185 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 23 Surface .49 - 158+87 Element Flows To: Outlet 1 Outlet 2 Bioretention 156+37.49 - 158+87 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 24 Bioretention 167+87.01-168.54.36 Bottom Length: 67.35 ft. Bottom Width: 4.00 ft. Material thickness of first layer: 1.5 Material type for first layer: SMMWW 12 in/hr Material thickness of second layer: 5.5 Material type for second layer: GRAVEL Material thickness of third layer: 0 Material type for third layer: GRAVEL Infiltration On Infiltration rate:0.3 Infiltration safety factor:1 Total Volume Infiltrated (ac-ft.):4.98 Total Volume Through Riser (ac-ft.):0 Total Volume Through Facility (ac-ft.):4.98 Percent Infiltrated:100 Total Precip Applied to Facility:0.503 Total Evap From Facility:0.429 Underdrain used Underdrain Diameter (feet):0.5 Orifice Diameter (in.):6 Offset (in.):60 Flow Through Underdrain (ac-ft.):0 Total Outflow (ac-ft.):4.98 Percent Through Underdrain:0 Discharge Structure Riser Height:1 ft. Riser Diameter:24 in. Element Flows To: Outlet 1 Outlet 2 Surface 69-170+08.23 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.0062 0.0000 0.0000 0.0000 0.0989 0.0062 0.0003 0.0000 0.0000 0.1978 0.0062 0.0006 0.0000 0.0000 0.2967 0.0062 0.0008 0.0000 0.0001 0.3956 0.0062 0.0011 0.0000 0.0002 0.4945 0.0062 0.0014 0.0000 0.0003 0.5934 0.0062 0.0017 0.0000 0.0004 0.6923 0.0062 0.0020 0.0000 0.0006 0.7912 0.0062 0.0022 0.0000 0.0008 0.8901 0.0062 0.0025 0.0000 0.0010 0.9890 0.0062 0.0028 0.0000 0.0013 1.0879 0.0062 0.0031 0.0000 0.0016 1.1868 0.0062 0.0034 0.0000 0.0019 1.2857 0.0062 0.0036 0.0000 0.0019 1.3846 0.0062 0.0039 0.0000 0.0019 1.4835 0.0062 0.0042 0.0000 0.0019 1.5824 0.0062 0.0044 0.0000 0.0019 1.6813 0.0062 0.0047 0.0000 0.0019 1.7802 0.0062 0.0050 0.0000 0.0019 1.8791 0.0062 0.0052 0.0000 0.0019 1.9780 0.0062 0.0055 0.0000 0.0019 2.0769 0.0062 0.0057 0.0000 0.0019 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 25 2.1758 0.0062 0.0060 0.0000 0.0019 2.2747 0.0062 0.0062 0.0000 0.0019 2.3736 0.0062 0.0065 0.0000 0.0019 2.4725 0.0062 0.0067 0.0000 0.0019 2.5714 0.0062 0.0070 0.0000 0.0019 2.6703 0.0062 0.0072 0.0000 0.0019 2.7692 0.0062 0.0075 0.0000 0.0019 2.8681 0.0062 0.0077 0.0000 0.0019 2.9670 0.0062 0.0080 0.0000 0.0019 3.0659 0.0062 0.0083 0.0000 0.0019 3.1648 0.0062 0.0085 0.0000 0.0019 3.2637 0.0062 0.0088 0.0000 0.0019 3.3626 0.0062 0.0090 0.0000 0.0019 3.4615 0.0062 0.0093 0.0000 0.0019 3.5604 0.0062 0.0095 0.0000 0.0019 3.6593 0.0062 0.0098 0.0000 0.0019 3.7582 0.0062 0.0100 0.0000 0.0019 3.8571 0.0062 0.0103 0.0000 0.0019 3.9560 0.0062 0.0105 0.0000 0.0019 4.0549 0.0062 0.0108 0.0000 0.0019 4.1538 0.0062 0.0110 0.0000 0.0019 4.2527 0.0062 0.0113 0.0000 0.0019 4.3516 0.0062 0.0116 0.0000 0.0019 4.4505 0.0062 0.0118 0.0000 0.0019 4.5495 0.0062 0.0121 0.0000 0.0019 4.6484 0.0062 0.0123 0.0000 0.0019 4.7473 0.0062 0.0126 0.0000 0.0019 4.8462 0.0062 0.0128 0.0000 0.0019 4.9451 0.0062 0.0131 0.0000 0.0019 5.0440 0.0062 0.0133 0.0000 0.0019 5.1429 0.0062 0.0136 0.0000 0.0019 5.2418 0.0062 0.0138 0.0000 0.0019 5.3407 0.0062 0.0141 0.0000 0.0019 5.4396 0.0062 0.0143 0.0000 0.0019 5.5385 0.0062 0.0146 0.0000 0.0019 5.6374 0.0062 0.0149 0.0000 0.0019 5.7363 0.0062 0.0151 0.0000 0.0019 5.8352 0.0062 0.0154 0.0000 0.0019 5.9341 0.0062 0.0156 0.0000 0.0019 6.0330 0.0062 0.0159 0.0000 0.0019 6.1319 0.0062 0.0161 0.0000 0.0019 6.2308 0.0062 0.0164 0.0000 0.0019 6.3297 0.0062 0.0166 0.0000 0.0019 6.4286 0.0062 0.0169 0.0000 0.0019 6.5275 0.0062 0.0171 0.0293 0.0019 6.6264 0.0062 0.0174 0.0293 0.0019 6.7253 0.0062 0.0176 0.0293 0.0019 6.8242 0.0062 0.0179 0.0293 0.0019 6.9231 0.0062 0.0182 0.0293 0.0019 7.0000 0.0062 0.0184 0.0293 0.0019 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)To Amended(cfs)Infilt(cfs) 7.0000 0.0062 0.0184 0.0000 0.0187 0.0000 7.0989 0.0062 0.0190 0.0000 0.0187 0.0000 7.1978 0.0062 0.0196 0.0000 0.0212 0.0000 7.2967 0.0062 0.0202 0.0000 0.0224 0.0000 7.3956 0.0062 0.0208 0.0000 0.0236 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 26 7.4945 0.0062 0.0214 0.0000 0.0249 0.0000 7.5934 0.0062 0.0220 0.0000 0.0261 0.0000 7.6923 0.0062 0.0226 0.0000 0.0273 0.0000 7.7912 0.0062 0.0232 0.0000 0.0286 0.0000 7.8901 0.0062 0.0239 0.0000 0.0298 0.0000 7.9890 0.0062 0.0245 0.0000 0.0310 0.0000 8.0879 0.0062 0.0251 0.5526 0.0312 0.0000 8.1868 0.0062 0.0257 1.7049 0.0312 0.0000 8.2857 0.0062 0.0263 3.1878 0.0312 0.0000 8.3846 0.0062 0.0269 4.8649 0.0312 0.0000 8.4835 0.0062 0.0275 6.6018 0.0312 0.0000 8.5824 0.0062 0.0281 8.2626 0.0312 0.0000 8.6813 0.0062 0.0288 9.7227 0.0312 0.0000 8.7802 0.0062 0.0294 10.892 0.0312 0.0000 8.8791 0.0062 0.0300 11.744 0.0312 0.0000 8.9780 0.0062 0.0306 12.347 0.0312 0.0000 9.0000 0.0062 0.0307 13.074 0.0312 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 27 Surface 01-168.54.36 Element Flows To: Outlet 1 Outlet 2 Surface 69-170+08.23Bioretention 167+87.01-168.54.36 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 28 Bioretention 168+96.69-170+08.23 Bottom Length: 111.54 ft. Bottom Width: 4.00 ft. Material thickness of first layer: 1.5 Material type for first layer: SMMWW 12 in/hr Material thickness of second layer: 5.5 Material type for second layer: GRAVEL Material thickness of third layer: 0 Material type for third layer: GRAVEL Infiltration On Infiltration rate:0.3 Infiltration safety factor:1 Total Volume Infiltrated (ac-ft.):7.331 Total Volume Through Riser (ac-ft.):0 Total Volume Through Facility (ac-ft.):7.331 Percent Infiltrated:100 Total Precip Applied to Facility:0.833 Total Evap From Facility:0.699 Underdrain used Underdrain Diameter (feet):0.5 Orifice Diameter (in.):6 Offset (in.):57 Flow Through Underdrain (ac-ft.):0 Total Outflow (ac-ft.):7.331 Percent Through Underdrain:0 Discharge Structure Riser Height:1 ft. Riser Diameter:24 in. Element Flows To: Outlet 1 Outlet 2 Surface 9- 171+16.87 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.0102 0.0000 0.0000 0.0000 0.0989 0.0102 0.0005 0.0000 0.0000 0.1978 0.0102 0.0009 0.0000 0.0000 0.2967 0.0102 0.0014 0.0001 0.0001 0.3956 0.0102 0.0019 0.0003 0.0003 0.4945 0.0102 0.0023 0.0005 0.0005 0.5934 0.0102 0.0028 0.0007 0.0007 0.6923 0.0102 0.0032 0.0010 0.0010 0.7912 0.0102 0.0037 0.0013 0.0013 0.8901 0.0102 0.0042 0.0017 0.0017 0.9890 0.0102 0.0046 0.0022 0.0022 1.0879 0.0102 0.0051 0.0027 0.0027 1.1868 0.0102 0.0056 0.0031 0.0031 1.2857 0.0102 0.0060 0.0031 0.0031 1.3846 0.0102 0.0065 0.0031 0.0031 1.4835 0.0102 0.0069 0.0031 0.0031 1.5824 0.0102 0.0074 0.0031 0.0031 1.6813 0.0102 0.0078 0.0031 0.0031 1.7802 0.0102 0.0082 0.0031 0.0031 1.8791 0.0102 0.0086 0.0031 0.0031 1.9780 0.0102 0.0091 0.0031 0.0031 2.0769 0.0102 0.0095 0.0031 0.0031 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 29 2.1758 0.0102 0.0099 0.0031 0.0031 2.2747 0.0102 0.0103 0.0031 0.0031 2.3736 0.0102 0.0107 0.0031 0.0031 2.4725 0.0102 0.0112 0.0031 0.0031 2.5714 0.0102 0.0116 0.0031 0.0031 2.6703 0.0102 0.0120 0.0031 0.0031 2.7692 0.0102 0.0124 0.0031 0.0031 2.8681 0.0102 0.0128 0.0031 0.0031 2.9670 0.0102 0.0133 0.0031 0.0031 3.0659 0.0102 0.0137 0.0031 0.0031 3.1648 0.0102 0.0141 0.0031 0.0031 3.2637 0.0102 0.0145 0.0031 0.0031 3.3626 0.0102 0.0149 0.0031 0.0031 3.4615 0.0102 0.0154 0.0031 0.0031 3.5604 0.0102 0.0158 0.0031 0.0031 3.6593 0.0102 0.0162 0.0031 0.0031 3.7582 0.0102 0.0166 0.0031 0.0031 3.8571 0.0102 0.0170 0.0031 0.0031 3.9560 0.0102 0.0175 0.0031 0.0031 4.0549 0.0102 0.0179 0.0031 0.0031 4.1538 0.0102 0.0183 0.0031 0.0031 4.2527 0.0102 0.0187 0.0031 0.0031 4.3516 0.0102 0.0191 0.0031 0.0031 4.4505 0.0102 0.0196 0.0031 0.0031 4.5495 0.0102 0.0200 0.0031 0.0031 4.6484 0.0102 0.0204 0.0031 0.0031 4.7473 0.0102 0.0208 0.0031 0.0031 4.8462 0.0102 0.0212 0.0031 0.0031 4.9451 0.0102 0.0217 0.0031 0.0031 5.0440 0.0102 0.0221 0.0031 0.0031 5.1429 0.0102 0.0225 0.0031 0.0031 5.2418 0.0102 0.0229 0.0031 0.0031 5.3407 0.0102 0.0233 0.0031 0.0031 5.4396 0.0102 0.0238 0.0031 0.0031 5.5385 0.0102 0.0242 0.0031 0.0031 5.6374 0.0102 0.0246 0.0031 0.0031 5.7363 0.0102 0.0250 0.0031 0.0031 5.8352 0.0102 0.0254 0.0031 0.0031 5.9341 0.0102 0.0259 0.0031 0.0031 6.0330 0.0102 0.0263 0.0031 0.0031 6.1319 0.0102 0.0267 0.0031 0.0031 6.2308 0.0102 0.0271 0.0031 0.0031 6.3297 0.0102 0.0275 0.0031 0.0031 6.4286 0.0102 0.0280 0.0031 0.0031 6.5275 0.0102 0.0284 0.0031 0.0031 6.6264 0.0102 0.0288 0.0031 0.0031 6.7253 0.0102 0.0292 0.0031 0.0031 6.8242 0.0102 0.0296 0.0031 0.0031 6.9231 0.0102 0.0301 0.0031 0.0031 7.0000 0.0102 0.0304 0.0031 0.0031 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)To Amended(cfs)Infilt(cfs) 7.0000 0.0102 0.0304 0.0000 0.0310 0.0000 7.0989 0.0102 0.0314 0.0000 0.0310 0.0000 7.1978 0.0102 0.0324 0.0000 0.0351 0.0000 7.2967 0.0102 0.0334 0.0000 0.0371 0.0000 7.3956 0.0102 0.0344 0.0000 0.0392 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 30 7.4945 0.0102 0.0355 0.0000 0.0412 0.0000 7.5934 0.0102 0.0365 0.0000 0.0432 0.0000 7.6923 0.0102 0.0375 0.0000 0.0453 0.0000 7.7912 0.0102 0.0385 0.0000 0.0473 0.0000 7.8901 0.0102 0.0395 0.0000 0.0494 0.0000 7.9890 0.0102 0.0405 0.0000 0.0514 0.0000 8.0879 0.0102 0.0415 0.0000 0.0516 0.0000 8.1868 0.0102 0.0426 0.0000 0.0516 0.0000 8.2857 0.0102 0.0436 0.0000 0.0516 0.0000 8.3846 0.0102 0.0446 0.0000 0.0516 0.0000 8.4835 0.0102 0.0456 0.0000 0.0516 0.0000 8.5824 0.0102 0.0466 0.0000 0.0516 0.0000 8.6813 0.0102 0.0476 0.0000 0.0516 0.0000 8.7802 0.0102 0.0486 0.0000 0.0516 0.0000 8.8791 0.0102 0.0496 0.0000 0.0516 0.0000 8.9780 0.0102 0.0507 0.0000 0.0516 0.0000 9.0000 0.0102 0.0509 0.0000 0.0516 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 31 Surface 69-170+08.23 Element Flows To: Outlet 1 Outlet 2 Surface 9- 171+16.87 Bioretention 168+96.69-170+08.23 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 32 Bioretention 170+48.49- 171+16.87 Bottom Length: 68.38 ft. Bottom Width: 4.00 ft. Material thickness of first layer: 1.5 Material type for first layer: SMMWW 12 in/hr Material thickness of second layer: 5.5 Material type for second layer: GRAVEL Material thickness of third layer: 0 Material type for third layer: GRAVEL Infiltration On Infiltration rate:0.3 Infiltration safety factor:1 Total Volume Infiltrated (ac-ft.):5.287 Total Volume Through Riser (ac-ft.):0 Total Volume Through Facility (ac-ft.):5.289 Percent Infiltrated:99.96 Total Precip Applied to Facility:0.511 Total Evap From Facility:0.438 Underdrain used Underdrain Diameter (feet):0.5 Orifice Diameter (in.):6 Offset (in.):60 Flow Through Underdrain (ac-ft.):0.002 Total Outflow (ac-ft.):5.289 Percent Through Underdrain:0.04 Discharge Structure Riser Height:1 ft. Riser Diameter:24 in. Element Flows To: Outlet 1 Outlet 2 Surface 64-172+36.32 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.0063 0.0000 0.0000 0.0000 0.0989 0.0063 0.0003 0.0000 0.0000 0.1978 0.0063 0.0006 0.0000 0.0000 0.2967 0.0063 0.0009 0.0001 0.0001 0.3956 0.0063 0.0011 0.0002 0.0002 0.4945 0.0063 0.0014 0.0003 0.0003 0.5934 0.0063 0.0017 0.0004 0.0004 0.6923 0.0063 0.0020 0.0006 0.0006 0.7912 0.0063 0.0023 0.0008 0.0008 0.8901 0.0063 0.0026 0.0010 0.0010 0.9890 0.0063 0.0028 0.0013 0.0013 1.0879 0.0063 0.0031 0.0017 0.0017 1.1868 0.0063 0.0034 0.0019 0.0019 1.2857 0.0063 0.0037 0.0019 0.0019 1.3846 0.0063 0.0040 0.0019 0.0019 1.4835 0.0063 0.0043 0.0019 0.0019 1.5824 0.0063 0.0045 0.0019 0.0019 1.6813 0.0063 0.0048 0.0019 0.0019 1.7802 0.0063 0.0050 0.0019 0.0019 1.8791 0.0063 0.0053 0.0019 0.0019 1.9780 0.0063 0.0055 0.0019 0.0019 2.0769 0.0063 0.0058 0.0019 0.0019 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 33 2.1758 0.0063 0.0061 0.0019 0.0019 2.2747 0.0063 0.0063 0.0019 0.0019 2.3736 0.0063 0.0066 0.0019 0.0019 2.4725 0.0063 0.0068 0.0019 0.0019 2.5714 0.0063 0.0071 0.0019 0.0019 2.6703 0.0063 0.0074 0.0019 0.0019 2.7692 0.0063 0.0076 0.0019 0.0019 2.8681 0.0063 0.0079 0.0019 0.0019 2.9670 0.0063 0.0081 0.0019 0.0019 3.0659 0.0063 0.0084 0.0019 0.0019 3.1648 0.0063 0.0086 0.0019 0.0019 3.2637 0.0063 0.0089 0.0019 0.0019 3.3626 0.0063 0.0092 0.0019 0.0019 3.4615 0.0063 0.0094 0.0019 0.0019 3.5604 0.0063 0.0097 0.0019 0.0019 3.6593 0.0063 0.0099 0.0019 0.0019 3.7582 0.0063 0.0102 0.0019 0.0019 3.8571 0.0063 0.0104 0.0019 0.0019 3.9560 0.0063 0.0107 0.0019 0.0019 4.0549 0.0063 0.0110 0.0019 0.0019 4.1538 0.0063 0.0112 0.0019 0.0019 4.2527 0.0063 0.0115 0.0019 0.0019 4.3516 0.0063 0.0117 0.0019 0.0019 4.4505 0.0063 0.0120 0.0019 0.0019 4.5495 0.0063 0.0122 0.0019 0.0019 4.6484 0.0063 0.0125 0.0019 0.0019 4.7473 0.0063 0.0128 0.0019 0.0019 4.8462 0.0063 0.0130 0.0019 0.0019 4.9451 0.0063 0.0133 0.0019 0.0019 5.0440 0.0063 0.0135 0.0019 0.0019 5.1429 0.0063 0.0138 0.0019 0.0019 5.2418 0.0063 0.0141 0.0019 0.0019 5.3407 0.0063 0.0143 0.0019 0.0019 5.4396 0.0063 0.0146 0.0019 0.0019 5.5385 0.0063 0.0148 0.0019 0.0019 5.6374 0.0063 0.0151 0.0019 0.0019 5.7363 0.0063 0.0153 0.0019 0.0019 5.8352 0.0063 0.0156 0.0019 0.0019 5.9341 0.0063 0.0159 0.0019 0.0019 6.0330 0.0063 0.0161 0.0019 0.0019 6.1319 0.0063 0.0164 0.0019 0.0019 6.2308 0.0063 0.0166 0.0019 0.0019 6.3297 0.0063 0.0169 0.0019 0.0019 6.4286 0.0063 0.0171 0.0019 0.0019 6.5275 0.0063 0.0174 0.0019 0.0019 6.6264 0.0063 0.0177 0.0019 0.0019 6.7253 0.0063 0.0179 0.0019 0.0019 6.8242 0.0063 0.0182 0.0019 0.0019 6.9231 0.0063 0.0184 0.0019 0.0019 7.0000 0.0063 0.0186 0.0019 0.0019 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)To Amended(cfs)Infilt(cfs) 7.0000 0.0063 0.0186 0.0000 0.0190 0.0000 7.0989 0.0063 0.0193 0.0000 0.0190 0.0000 7.1978 0.0063 0.0199 0.0000 0.0215 0.0000 7.2967 0.0063 0.0205 0.0000 0.0228 0.0000 7.3956 0.0063 0.0211 0.0000 0.0240 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 34 7.4945 0.0063 0.0217 0.0000 0.0253 0.0000 7.5934 0.0063 0.0224 0.0000 0.0265 0.0000 7.6923 0.0063 0.0230 0.0000 0.0278 0.0000 7.7912 0.0063 0.0236 0.0000 0.0290 0.0000 7.8901 0.0063 0.0242 0.0000 0.0303 0.0000 7.9890 0.0063 0.0248 0.0000 0.0315 0.0000 8.0879 0.0063 0.0255 0.0000 0.0317 0.0000 8.1868 0.0063 0.0261 0.0000 0.0317 0.0000 8.2857 0.0063 0.0267 0.0000 0.0317 0.0000 8.3846 0.0063 0.0273 0.0000 0.0317 0.0000 8.4835 0.0063 0.0280 0.0000 0.0317 0.0000 8.5824 0.0063 0.0286 0.0000 0.0317 0.0000 8.6813 0.0063 0.0292 0.0000 0.0317 0.0000 8.7802 0.0063 0.0298 0.0000 0.0317 0.0000 8.8791 0.0063 0.0304 0.0000 0.0317 0.0000 8.9780 0.0063 0.0311 0.0000 0.0317 0.0000 9.0000 0.0063 0.0312 0.0000 0.0317 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 35 Surface 9- 171+16.87 Element Flows To: Outlet 1 Outlet 2 Surface 64-172+36.32Bioretention 170+48.49- 171+16.87 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 36 Bioretention 171+55.64-172+36.32 Bottom Length: 80.68 ft. Bottom Width: 4.00 ft. Material thickness of first layer: 1.5 Material type for first layer: SMMWW 12 in/hr Material thickness of second layer: 5.5 Material type for second layer: GRAVEL Material thickness of third layer: 0 Material type for third layer: GRAVEL Infiltration On Infiltration rate:0.3 Infiltration safety factor:1 Total Volume Infiltrated (ac-ft.):5.428 Total Volume Through Riser (ac-ft.):0 Total Volume Through Facility (ac-ft.):5.437 Percent Infiltrated:99.83 Total Precip Applied to Facility:0.603 Total Evap From Facility:0.507 Underdrain used Underdrain Diameter (feet):0.5 Orifice Diameter (in.):6 Offset (in.):40 Flow Through Underdrain (ac-ft.):0.009 Total Outflow (ac-ft.):5.437 Percent Through Underdrain:0.17 Discharge Structure Riser Height:1 ft. Riser Diameter:24 in. Element Flows To: Outlet 1 Outlet 2 Surface 93-177+38.28 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.0074 0.0000 0.0000 0.0000 0.0989 0.0074 0.0003 0.0000 0.0000 0.1978 0.0074 0.0007 0.0000 0.0000 0.2967 0.0074 0.0010 0.0001 0.0001 0.3956 0.0074 0.0013 0.0002 0.0002 0.4945 0.0074 0.0017 0.0003 0.0003 0.5934 0.0074 0.0020 0.0005 0.0005 0.6923 0.0074 0.0023 0.0007 0.0007 0.7912 0.0074 0.0027 0.0009 0.0009 0.8901 0.0074 0.0030 0.0012 0.0012 0.9890 0.0074 0.0034 0.0016 0.0016 1.0879 0.0074 0.0037 0.0020 0.0020 1.1868 0.0074 0.0040 0.0022 0.0022 1.2857 0.0074 0.0044 0.0022 0.0022 1.3846 0.0074 0.0047 0.0022 0.0022 1.4835 0.0074 0.0050 0.0022 0.0022 1.5824 0.0074 0.0053 0.0022 0.0022 1.6813 0.0074 0.0056 0.0022 0.0022 1.7802 0.0074 0.0059 0.0022 0.0022 1.8791 0.0074 0.0062 0.0022 0.0022 1.9780 0.0074 0.0065 0.0022 0.0022 2.0769 0.0074 0.0069 0.0022 0.0022 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 37 2.1758 0.0074 0.0072 0.0022 0.0022 2.2747 0.0074 0.0075 0.0022 0.0022 2.3736 0.0074 0.0078 0.0022 0.0022 2.4725 0.0074 0.0081 0.0022 0.0022 2.5714 0.0074 0.0084 0.0022 0.0022 2.6703 0.0074 0.0087 0.0022 0.0022 2.7692 0.0074 0.0090 0.0022 0.0022 2.8681 0.0074 0.0093 0.0022 0.0022 2.9670 0.0074 0.0096 0.0022 0.0022 3.0659 0.0074 0.0099 0.0022 0.0022 3.1648 0.0074 0.0102 0.0022 0.0022 3.2637 0.0074 0.0105 0.0022 0.0022 3.3626 0.0074 0.0108 0.0022 0.0022 3.4615 0.0074 0.0111 0.0022 0.0022 3.5604 0.0074 0.0114 0.0022 0.0022 3.6593 0.0074 0.0117 0.0022 0.0022 3.7582 0.0074 0.0120 0.0022 0.0022 3.8571 0.0074 0.0123 0.0022 0.0022 3.9560 0.0074 0.0126 0.0022 0.0022 4.0549 0.0074 0.0129 0.0022 0.0022 4.1538 0.0074 0.0132 0.0022 0.0022 4.2527 0.0074 0.0135 0.0022 0.0022 4.3516 0.0074 0.0138 0.0022 0.0022 4.4505 0.0074 0.0141 0.0022 0.0022 4.5495 0.0074 0.0145 0.0022 0.0022 4.6484 0.0074 0.0148 0.0022 0.0022 4.7473 0.0074 0.0151 0.0022 0.0022 4.8462 0.0074 0.0154 0.0022 0.0022 4.9451 0.0074 0.0157 0.0022 0.0022 5.0440 0.0074 0.0160 0.0022 0.0022 5.1429 0.0074 0.0163 0.0022 0.0022 5.2418 0.0074 0.0166 0.0022 0.0022 5.3407 0.0074 0.0169 0.0022 0.0022 5.4396 0.0074 0.0172 0.0022 0.0022 5.5385 0.0074 0.0175 0.0022 0.0022 5.6374 0.0074 0.0178 0.0022 0.0022 5.7363 0.0074 0.0181 0.0022 0.0022 5.8352 0.0074 0.0184 0.0022 0.0022 5.9341 0.0074 0.0187 0.0022 0.0022 6.0330 0.0074 0.0190 0.0022 0.0022 6.1319 0.0074 0.0193 0.0022 0.0022 6.2308 0.0074 0.0196 0.0022 0.0022 6.3297 0.0074 0.0199 0.0022 0.0022 6.4286 0.0074 0.0202 0.0022 0.0022 6.5275 0.0074 0.0205 0.0022 0.0022 6.6264 0.0074 0.0208 0.0022 0.0022 6.7253 0.0074 0.0211 0.0022 0.0022 6.8242 0.0074 0.0214 0.0022 0.0022 6.9231 0.0074 0.0218 0.0022 0.0022 7.0000 0.0074 0.0220 0.0022 0.0022 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)To Amended(cfs)Infilt(cfs) 7.0000 0.0074 0.0220 0.0000 0.0224 0.0000 7.0989 0.0074 0.0227 0.0000 0.0224 0.0000 7.1978 0.0074 0.0235 0.0000 0.0254 0.0000 7.2967 0.0074 0.0242 0.0000 0.0268 0.0000 7.3956 0.0074 0.0249 0.0000 0.0283 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 38 7.4945 0.0074 0.0257 0.0000 0.0298 0.0000 7.5934 0.0074 0.0264 0.0000 0.0313 0.0000 7.6923 0.0074 0.0271 0.0000 0.0328 0.0000 7.7912 0.0074 0.0278 0.0000 0.0342 0.0000 7.8901 0.0074 0.0286 0.0000 0.0357 0.0000 7.9890 0.0074 0.0293 0.0000 0.0372 0.0000 8.0879 0.0074 0.0300 0.0000 0.0374 0.0000 8.1868 0.0074 0.0308 0.0000 0.0374 0.0000 8.2857 0.0074 0.0315 0.0000 0.0374 0.0000 8.3846 0.0074 0.0322 0.0000 0.0374 0.0000 8.4835 0.0074 0.0330 0.0000 0.0374 0.0000 8.5824 0.0074 0.0337 0.0000 0.0374 0.0000 8.6813 0.0074 0.0344 0.0000 0.0374 0.0000 8.7802 0.0074 0.0352 0.0000 0.0374 0.0000 8.8791 0.0074 0.0359 0.0000 0.0374 0.0000 8.9780 0.0074 0.0366 0.0000 0.0374 0.0000 9.0000 0.0074 0.0368 0.0000 0.0374 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 39 Surface 64-172+36.32 Element Flows To: Outlet 1 Outlet 2 Surface 93-177+38.28Bioretention 171+55.64-172+36.32 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 40 Infiltration 172+70-175+55 Bottom Length:285.00 ft. Bottom Width:2.00 ft. Trench bottom slope 1:0 To 1 Trench Left side slope 0:0 To 1 Trench right side slope 2:0 To 1 Material thickness of first layer:2 Pour Space of material for first layer:0.4 Material thickness of second layer:0 Pour Space of material for second layer:0 Material thickness of third layer:0 Pour Space of material for third layer:0 Infiltration On Infiltration rate:0.3 Infiltration safety factor:1 Total Volume Infiltrated (ac-ft.):11.105 Total Volume Through Riser (ac-ft.):0.602 Total Volume Through Facility (ac-ft.):11.707 Percent Infiltrated:94.86 Total Precip Applied to Facility:0 Total Evap From Facility:0 Discharge Structure Riser Height:2 ft. Riser Diameter:24 in. Orifice 1 Diameter:6 in.Elevation:1.5 ft. Element Flows To: Outlet 1 Outlet 2 Surface 93-177+38.28 Gravel Trench Bed Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.013 0.000 0.000 0.000 0.0333 0.013 0.000 0.000 0.004 0.0667 0.013 0.000 0.000 0.004 0.1000 0.013 0.000 0.000 0.004 0.1333 0.013 0.000 0.000 0.004 0.1667 0.013 0.000 0.000 0.004 0.2000 0.013 0.001 0.000 0.004 0.2333 0.013 0.001 0.000 0.004 0.2667 0.013 0.001 0.000 0.004 0.3000 0.013 0.001 0.000 0.004 0.3333 0.013 0.001 0.000 0.004 0.3667 0.013 0.001 0.000 0.004 0.4000 0.013 0.002 0.000 0.004 0.4333 0.013 0.002 0.000 0.004 0.4667 0.013 0.002 0.000 0.004 0.5000 0.013 0.002 0.000 0.004 0.5333 0.013 0.002 0.000 0.004 0.5667 0.013 0.003 0.000 0.004 0.6000 0.013 0.003 0.000 0.004 0.6333 0.013 0.003 0.000 0.004 0.6667 0.013 0.003 0.000 0.004 0.7000 0.013 0.003 0.000 0.004 0.7333 0.013 0.003 0.000 0.004 0.7667 0.013 0.004 0.000 0.004 0.8000 0.013 0.004 0.000 0.004 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 41 0.8333 0.013 0.004 0.000 0.004 0.8667 0.013 0.004 0.000 0.004 0.9000 0.013 0.004 0.000 0.004 0.9333 0.013 0.004 0.000 0.004 0.9667 0.013 0.005 0.000 0.004 1.0000 0.013 0.005 0.000 0.004 1.0333 0.013 0.005 0.000 0.004 1.0667 0.013 0.005 0.000 0.004 1.1000 0.013 0.005 0.000 0.004 1.1333 0.013 0.005 0.000 0.004 1.1667 0.013 0.006 0.000 0.004 1.2000 0.013 0.006 0.000 0.004 1.2333 0.013 0.006 0.000 0.004 1.2667 0.013 0.006 0.000 0.004 1.3000 0.013 0.006 0.000 0.004 1.3333 0.013 0.007 0.000 0.004 1.3667 0.013 0.007 0.000 0.004 1.4000 0.013 0.007 0.000 0.004 1.4333 0.013 0.007 0.000 0.004 1.4667 0.013 0.007 0.000 0.004 1.5000 0.013 0.007 0.000 0.004 1.5333 0.013 0.008 0.178 0.004 1.5667 0.013 0.008 0.252 0.004 1.6000 0.013 0.008 0.308 0.004 1.6333 0.013 0.008 0.356 0.004 1.6667 0.013 0.008 0.398 0.004 1.7000 0.013 0.008 0.436 0.004 1.7333 0.013 0.009 0.471 0.004 1.7667 0.013 0.009 0.504 0.004 1.8000 0.013 0.009 0.535 0.004 1.8333 0.013 0.009 0.564 0.004 1.8667 0.013 0.009 0.591 0.004 1.9000 0.013 0.009 0.617 0.004 1.9333 0.013 0.010 0.643 0.004 1.9667 0.013 0.010 0.667 0.004 2.0000 0.013 0.010 0.690 0.004 2.0333 0.013 0.011 0.842 0.004 2.0667 0.013 0.011 1.100 0.004 2.1000 0.013 0.012 1.427 0.004 2.1333 0.013 0.012 1.808 0.004 2.1667 0.013 0.012 2.236 0.004 2.2000 0.013 0.013 2.704 0.004 2.2333 0.013 0.013 3.206 0.004 2.2667 0.013 0.014 3.738 0.004 2.3000 0.013 0.014 4.295 0.004 2.3333 0.013 0.015 4.871 0.004 2.3667 0.013 0.015 5.461 0.004 2.4000 0.013 0.016 6.061 0.004 2.4333 0.013 0.016 6.665 0.004 2.4667 0.013 0.016 7.268 0.004 2.5000 0.013 0.017 7.864 0.004 2.5333 0.013 0.017 8.449 0.004 2.5667 0.013 0.018 9.017 0.004 2.6000 0.013 0.018 9.564 0.004 2.6333 0.013 0.019 10.08 0.004 2.6667 0.013 0.019 10.57 0.004 2.7000 0.013 0.019 11.03 0.004 2.7333 0.013 0.020 11.46 0.004 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 42 2.7667 0.013 0.020 11.85 0.004 2.8000 0.013 0.021 12.20 0.004 2.8333 0.013 0.021 12.51 0.004 2.8667 0.013 0.022 12.79 0.004 2.9000 0.013 0.022 13.04 0.004 2.9333 0.013 0.022 13.26 0.004 2.9667 0.013 0.023 13.46 0.004 3.0000 0.013 0.023 13.66 0.004 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 43 SPLIT Bioretention 175+65.93-177+38.28 Bottom Length: 95.56 ft. Bottom Width: 4.00 ft. Material thickness of first layer: 1.5 Material type for first layer: SMMWW 12 in/hr Material thickness of second layer: 5.5 Material type for second layer: GRAVEL Material thickness of third layer: 0 Material type for third layer: GRAVEL Infiltration On Infiltration rate:0.3 Infiltration safety factor:1 Total Volume Infiltrated (ac-ft.):12.638 Total Volume Through Riser (ac-ft.):0.026 Total Volume Through Facility (ac-ft.):13.73 Percent Infiltrated:92.05 Total Precip Applied to Facility:0.716 Total Evap From Facility:0.659 Underdrain used Underdrain Diameter (feet):0.5 Orifice Diameter (in.):6 Offset (in.):47 Flow Through Underdrain (ac-ft.):1.066 Total Outflow (ac-ft.):13.73 Percent Through Underdrain:7.76 Discharge Structure Riser Height:1 ft. Riser Diameter:24 in. Element Flows To: Outlet 1 Outlet 2 Surface 33-181+48.90 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.0088 0.0000 0.0000 0.0000 0.0989 0.0088 0.0004 0.0000 0.0000 0.1978 0.0088 0.0008 0.0000 0.0000 0.2967 0.0088 0.0012 0.0000 0.0001 0.3956 0.0088 0.0016 0.0000 0.0003 0.4945 0.0088 0.0020 0.0000 0.0004 0.5934 0.0088 0.0024 0.0000 0.0006 0.6923 0.0088 0.0028 0.0000 0.0008 0.7912 0.0088 0.0032 0.0000 0.0011 0.8901 0.0088 0.0036 0.0000 0.0015 0.9890 0.0088 0.0040 0.0000 0.0018 1.0879 0.0088 0.0044 0.0000 0.0023 1.1868 0.0088 0.0048 0.0000 0.0027 1.2857 0.0088 0.0052 0.0000 0.0027 1.3846 0.0088 0.0056 0.0000 0.0027 1.4835 0.0088 0.0060 0.0000 0.0027 1.5824 0.0088 0.0063 0.0000 0.0027 1.6813 0.0088 0.0067 0.0000 0.0027 1.7802 0.0088 0.0070 0.0000 0.0027 1.8791 0.0088 0.0074 0.0000 0.0027 1.9780 0.0088 0.0078 0.0000 0.0027 2.0769 0.0088 0.0081 0.0000 0.0027 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 44 2.1758 0.0088 0.0085 0.0000 0.0027 2.2747 0.0088 0.0088 0.0000 0.0027 2.3736 0.0088 0.0092 0.0000 0.0027 2.4725 0.0088 0.0096 0.0000 0.0027 2.5714 0.0088 0.0099 0.0000 0.0027 2.6703 0.0088 0.0103 0.0000 0.0027 2.7692 0.0088 0.0106 0.0000 0.0027 2.8681 0.0088 0.0110 0.0000 0.0027 2.9670 0.0088 0.0114 0.0000 0.0027 3.0659 0.0088 0.0117 0.0000 0.0027 3.1648 0.0088 0.0121 0.0000 0.0027 3.2637 0.0088 0.0124 0.0000 0.0027 3.3626 0.0088 0.0128 0.0000 0.0027 3.4615 0.0088 0.0132 0.0000 0.0027 3.5604 0.0088 0.0135 0.0000 0.0027 3.6593 0.0088 0.0139 0.0000 0.0027 3.7582 0.0088 0.0142 0.0000 0.0027 3.8571 0.0088 0.0146 0.0000 0.0027 3.9560 0.0088 0.0150 0.0000 0.0027 4.0549 0.0088 0.0153 0.0000 0.0027 4.1538 0.0088 0.0157 0.0000 0.0027 4.2527 0.0088 0.0160 0.0000 0.0027 4.3516 0.0088 0.0164 0.0000 0.0027 4.4505 0.0088 0.0168 0.0000 0.0027 4.5495 0.0088 0.0171 0.0000 0.0027 4.6484 0.0088 0.0175 0.0000 0.0027 4.7473 0.0088 0.0178 0.0000 0.0027 4.8462 0.0088 0.0182 0.0000 0.0027 4.9451 0.0088 0.0186 0.0000 0.0027 5.0440 0.0088 0.0189 0.0000 0.0027 5.1429 0.0088 0.0193 0.0000 0.0027 5.2418 0.0088 0.0196 0.0000 0.0027 5.3407 0.0088 0.0200 0.0000 0.0027 5.4396 0.0088 0.0204 0.0416 0.0027 5.5385 0.0088 0.0207 0.0416 0.0027 5.6374 0.0088 0.0211 0.0416 0.0027 5.7363 0.0088 0.0214 0.0416 0.0027 5.8352 0.0088 0.0218 0.0416 0.0027 5.9341 0.0088 0.0222 0.0416 0.0027 6.0330 0.0088 0.0225 0.0416 0.0027 6.1319 0.0088 0.0229 0.0416 0.0027 6.2308 0.0088 0.0232 0.0416 0.0027 6.3297 0.0088 0.0236 0.0416 0.0027 6.4286 0.0088 0.0240 0.0416 0.0027 6.5275 0.0088 0.0243 0.0416 0.0027 6.6264 0.0088 0.0247 0.0416 0.0027 6.7253 0.0088 0.0250 0.0416 0.0027 6.8242 0.0088 0.0254 0.0416 0.0027 6.9231 0.0088 0.0258 0.0416 0.0027 7.0000 0.0088 0.0260 0.0416 0.0027 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)To Amended(cfs)Infilt(cfs) 7.0000 0.0088 0.0260 0.0000 0.0265 0.0000 7.0989 0.0088 0.0269 0.0000 0.0265 0.0000 7.1978 0.0088 0.0278 0.0000 0.0300 0.0000 7.2967 0.0088 0.0286 0.0000 0.0318 0.0000 7.3956 0.0088 0.0295 0.0000 0.0335 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 45 7.4945 0.0088 0.0304 0.0000 0.0353 0.0000 7.5934 0.0088 0.0312 0.0000 0.0370 0.0000 7.6923 0.0088 0.0321 0.0000 0.0388 0.0000 7.7912 0.0088 0.0330 0.0000 0.0405 0.0000 7.8901 0.0088 0.0339 0.0000 0.0423 0.0000 7.9890 0.0088 0.0347 0.0000 0.0440 0.0000 8.0879 0.0088 0.0356 0.5526 0.0442 0.0000 8.1868 0.0088 0.0365 1.7049 0.0442 0.0000 8.2857 0.0088 0.0373 3.1878 0.0442 0.0000 8.3846 0.0088 0.0382 4.8649 0.0442 0.0000 8.4835 0.0088 0.0391 6.6018 0.0442 0.0000 8.5824 0.0088 0.0399 8.2626 0.0442 0.0000 8.6813 0.0088 0.0408 9.7227 0.0442 0.0000 8.7802 0.0088 0.0417 10.892 0.0442 0.0000 8.8791 0.0088 0.0425 11.744 0.0442 0.0000 8.9780 0.0088 0.0434 12.347 0.0442 0.0000 9.0000 0.0088 0.0436 13.074 0.0442 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 46 Surface 93-177+38.28 Element Flows To: Outlet 1 Outlet 2 Surface 33-181+48.90SPLIT Bioretention 175+65.93-177+38.28 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 47 Bioretention 178+27.33-181+48.90 Bottom Length: 321.57 ft. Bottom Width: 4.00 ft. Material thickness of first layer: 1.5 Material type for first layer: SMMWW 12 in/hr Material thickness of second layer: 5.5 Material type for second layer: GRAVEL Material thickness of third layer: 0 Material type for third layer: GRAVEL Infiltration On Infiltration rate:0.3 Infiltration safety factor:1 Total Volume Infiltrated (ac-ft.):17.808 Total Volume Through Riser (ac-ft.):0 Total Volume Through Facility (ac-ft.):17.908 Percent Infiltrated:99.44 Total Precip Applied to Facility:2.399 Total Evap From Facility:1.949 Underdrain used Underdrain Diameter (feet):0.5 Orifice Diameter (in.):6 Offset (in.):60 Flow Through Underdrain (ac-ft.):0.1 Total Outflow (ac-ft.):17.908 Percent Through Underdrain:0.56 Discharge Structure Riser Height:1 ft. Riser Diameter:24 in. Element Flows To: Outlet 1 Outlet 2 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.0295 0.0000 0.0000 0.0000 0.0989 0.0295 0.0013 0.0000 0.0000 0.1978 0.0295 0.0027 0.0000 0.0000 0.2967 0.0295 0.0040 0.0000 0.0002 0.3956 0.0295 0.0053 0.0000 0.0009 0.4945 0.0295 0.0067 0.0000 0.0013 0.5934 0.0295 0.0080 0.0000 0.0020 0.6923 0.0295 0.0093 0.0000 0.0028 0.7912 0.0295 0.0107 0.0000 0.0037 0.8901 0.0295 0.0120 0.0000 0.0049 0.9890 0.0295 0.0134 0.0000 0.0062 1.0879 0.0295 0.0147 0.0000 0.0078 1.1868 0.0295 0.0160 0.0000 0.0089 1.2857 0.0295 0.0174 0.0000 0.0089 1.3846 0.0295 0.0187 0.0000 0.0089 1.4835 0.0295 0.0200 0.0000 0.0089 1.5824 0.0295 0.0212 0.0000 0.0089 1.6813 0.0295 0.0225 0.0000 0.0089 1.7802 0.0295 0.0237 0.0000 0.0089 1.8791 0.0295 0.0249 0.0000 0.0089 1.9780 0.0295 0.0261 0.0000 0.0089 2.0769 0.0295 0.0273 0.0000 0.0089 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 48 2.1758 0.0295 0.0285 0.0000 0.0089 2.2747 0.0295 0.0297 0.0000 0.0089 2.3736 0.0295 0.0309 0.0000 0.0089 2.4725 0.0295 0.0322 0.0000 0.0089 2.5714 0.0295 0.0334 0.0000 0.0089 2.6703 0.0295 0.0346 0.0000 0.0089 2.7692 0.0295 0.0358 0.0000 0.0089 2.8681 0.0295 0.0370 0.0000 0.0089 2.9670 0.0295 0.0382 0.0000 0.0089 3.0659 0.0295 0.0394 0.0000 0.0089 3.1648 0.0295 0.0406 0.0000 0.0089 3.2637 0.0295 0.0418 0.0000 0.0089 3.3626 0.0295 0.0431 0.0000 0.0089 3.4615 0.0295 0.0443 0.0000 0.0089 3.5604 0.0295 0.0455 0.0000 0.0089 3.6593 0.0295 0.0467 0.0000 0.0089 3.7582 0.0295 0.0479 0.0000 0.0089 3.8571 0.0295 0.0491 0.0000 0.0089 3.9560 0.0295 0.0503 0.0000 0.0089 4.0549 0.0295 0.0515 0.0000 0.0089 4.1538 0.0295 0.0528 0.0000 0.0089 4.2527 0.0295 0.0540 0.0000 0.0089 4.3516 0.0295 0.0552 0.0000 0.0089 4.4505 0.0295 0.0564 0.0000 0.0089 4.5495 0.0295 0.0576 0.0000 0.0089 4.6484 0.0295 0.0588 0.0000 0.0089 4.7473 0.0295 0.0600 0.0000 0.0089 4.8462 0.0295 0.0612 0.0000 0.0089 4.9451 0.0295 0.0625 0.0000 0.0089 5.0440 0.0295 0.0637 0.0000 0.0089 5.1429 0.0295 0.0649 0.0000 0.0089 5.2418 0.0295 0.0661 0.0000 0.0089 5.3407 0.0295 0.0673 0.0000 0.0089 5.4396 0.0295 0.0685 0.0000 0.0089 5.5385 0.0295 0.0697 0.0000 0.0089 5.6374 0.0295 0.0709 0.0000 0.0089 5.7363 0.0295 0.0721 0.0000 0.0089 5.8352 0.0295 0.0734 0.0000 0.0089 5.9341 0.0295 0.0746 0.0000 0.0089 6.0330 0.0295 0.0758 0.0000 0.0089 6.1319 0.0295 0.0770 0.0000 0.0089 6.2308 0.0295 0.0782 0.0000 0.0089 6.3297 0.0295 0.0794 0.0000 0.0089 6.4286 0.0295 0.0806 0.0000 0.0089 6.5275 0.0295 0.0818 0.1399 0.0089 6.6264 0.0295 0.0831 0.1399 0.0089 6.7253 0.0295 0.0843 0.1399 0.0089 6.8242 0.0295 0.0855 0.1399 0.0089 6.9231 0.0295 0.0867 0.1399 0.0089 7.0000 0.0295 0.0876 0.1399 0.0089 Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)To Amended(cfs)Infilt(cfs) 7.0000 0.0295 0.0876 0.0000 0.0893 0.0000 7.0989 0.0295 0.0906 0.0000 0.0893 0.0000 7.1978 0.0295 0.0935 0.0000 0.1011 0.0000 7.2967 0.0295 0.0964 0.0000 0.1070 0.0000 7.3956 0.0295 0.0993 0.0000 0.1129 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 49 7.4945 0.0295 0.1022 0.0000 0.1188 0.0000 7.5934 0.0295 0.1052 0.0000 0.1247 0.0000 7.6923 0.0295 0.1081 0.0000 0.1306 0.0000 7.7912 0.0295 0.1110 0.0000 0.1364 0.0000 7.8901 0.0295 0.1139 0.0000 0.1423 0.0000 7.9890 0.0295 0.1168 0.0000 0.1482 0.0000 8.0879 0.0295 0.1198 0.5526 0.1489 0.0000 8.1868 0.0295 0.1227 1.7049 0.1489 0.0000 8.2857 0.0295 0.1256 3.1878 0.1489 0.0000 8.3846 0.0295 0.1285 4.8649 0.1489 0.0000 8.4835 0.0295 0.1314 6.6018 0.1489 0.0000 8.5824 0.0295 0.1344 8.2626 0.1489 0.0000 8.6813 0.0295 0.1373 9.7227 0.1489 0.0000 8.7802 0.0295 0.1402 10.892 0.1489 0.0000 8.8791 0.0295 0.1431 11.744 0.1489 0.0000 8.9780 0.0295 0.1460 12.347 0.1489 0.0000 9.0000 0.0295 0.1467 13.074 0.1489 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 50 Surface 33-181+48.90 Element Flows To: Outlet 1 Outlet 2 Bioretention 178+27.33-181+48.90 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:45:38 PM Page 51 Analysis Results POC 1 + Predeveloped x Mitigated Predeveloped Landuse Totals for POC #1 Total Pervious Area:0.582989 Total Impervious Area:0.303696 Mitigated Landuse Totals for POC #1 Total Pervious Area:0 Total Impervious Area:0.883586 Flow Frequency Method:Log Pearson Type III 17B Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow(cfs) 2 year 0.086325 5 year 0.117319 10 year 0.138664 25 year 0.166586 50 year 0.188088 100 year 0.210199 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 0 5 year 0 10 year 0 25 year 0 50 year 0 100 year 0 Annual Peaks Annual Peaks for Predeveloped and Mitigated. POC #1 Year Predeveloped Mitigated 1949 0.113 0.000 1950 0.077 0.000 1951 0.158 0.000 1952 0.054 0.000 1953 0.128 0.000 1954 0.122 0.064 1955 0.098 0.000 1956 0.078 0.000 1957 0.075 0.000 1958 0.089 0.000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:46:39 PM Page 52 1959 0.111 0.000 1960 0.098 0.000 1961 0.086 0.000 1962 0.068 0.000 1963 0.085 0.000 1964 0.156 0.000 1965 0.057 0.000 1966 0.066 0.000 1967 0.091 0.000 1968 0.082 0.000 1969 0.073 0.000 1970 0.110 0.000 1971 0.192 0.000 1972 0.109 0.000 1973 0.080 0.000 1974 0.045 0.000 1975 0.116 0.000 1976 0.101 0.000 1977 0.066 0.000 1978 0.066 0.000 1979 0.138 0.000 1980 0.070 0.029 1981 0.130 0.016 1982 0.119 0.000 1983 0.095 0.000 1984 0.065 0.000 1985 0.157 0.000 1986 0.098 0.056 1987 0.191 0.000 1988 0.078 0.000 1989 0.082 0.000 1990 0.095 0.000 1991 0.099 0.000 1992 0.086 0.000 1993 0.052 0.000 1994 0.047 0.000 1995 0.045 0.000 1996 0.055 0.000 1997 0.071 0.000 1998 0.074 0.000 1999 0.094 0.054 2000 0.125 0.000 2001 0.049 0.000 2002 0.085 0.000 2003 0.060 0.000 2004 0.083 0.039 2005 0.105 0.000 2006 0.077 0.000 2007 0.178 0.000 2008 0.069 0.000 2009 0.056 0.000 Ranked Annual Peaks Ranked Annual Peaks for Predeveloped and Mitigated. POC #1 Rank Predeveloped Mitigated 1 0.1918 0.0635 2 0.1915 0.0556 3 0.1783 0.0535 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:46:39 PM Page 53 4 0.1578 0.0391 5 0.1571 0.0291 6 0.1557 0.0155 7 0.1381 0.0000 8 0.1301 0.0000 9 0.1285 0.0000 10 0.1253 0.0000 11 0.1222 0.0000 12 0.1190 0.0000 13 0.1163 0.0000 14 0.1128 0.0000 15 0.1109 0.0000 16 0.1096 0.0000 17 0.1089 0.0000 18 0.1049 0.0000 19 0.1009 0.0000 20 0.0990 0.0000 21 0.0977 0.0000 22 0.0977 0.0000 23 0.0976 0.0000 24 0.0947 0.0000 25 0.0946 0.0000 26 0.0941 0.0000 27 0.0911 0.0000 28 0.0889 0.0000 29 0.0860 0.0000 30 0.0857 0.0000 31 0.0854 0.0000 32 0.0845 0.0000 33 0.0829 0.0000 34 0.0823 0.0000 35 0.0822 0.0000 36 0.0803 0.0000 37 0.0781 0.0000 38 0.0778 0.0000 39 0.0771 0.0000 40 0.0770 0.0000 41 0.0748 0.0000 42 0.0737 0.0000 43 0.0733 0.0000 44 0.0707 0.0000 45 0.0698 0.0000 46 0.0691 0.0000 47 0.0675 0.0000 48 0.0661 0.0000 49 0.0660 0.0000 50 0.0659 0.0000 51 0.0650 0.0000 52 0.0604 0.0000 53 0.0566 0.0000 54 0.0564 0.0000 55 0.0551 0.0000 56 0.0542 0.0000 57 0.0522 0.0000 58 0.0493 0.0000 59 0.0467 0.0000 60 0.0453 0.0000 61 0.0450 0.0000 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:46:39 PM Page 54 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:46:39 PM Page 55 Duration Flows The Facility PASSED Flow(cfs)Predev Mit Percentage Pass/Fail 0.0432 1690 48 2 Pass 0.0446 1543 43 2 Pass 0.0461 1399 37 2 Pass 0.0476 1256 33 2 Pass 0.0490 1090 27 2 Pass 0.0505 944 22 2 Pass 0.0519 815 18 2 Pass 0.0534 731 13 1 Pass 0.0549 650 9 1 Pass 0.0563 581 6 1 Pass 0.0578 521 4 0 Pass 0.0593 463 4 0 Pass 0.0607 409 2 0 Pass 0.0622 378 1 0 Pass 0.0637 340 0 0 Pass 0.0651 301 0 0 Pass 0.0666 267 0 0 Pass 0.0680 241 0 0 Pass 0.0695 221 0 0 Pass 0.0710 198 0 0 Pass 0.0724 178 0 0 Pass 0.0739 162 0 0 Pass 0.0754 143 0 0 Pass 0.0768 137 0 0 Pass 0.0783 120 0 0 Pass 0.0798 114 0 0 Pass 0.0812 105 0 0 Pass 0.0827 100 0 0 Pass 0.0842 93 0 0 Pass 0.0856 87 0 0 Pass 0.0871 79 0 0 Pass 0.0885 75 0 0 Pass 0.0900 69 0 0 Pass 0.0915 65 0 0 Pass 0.0929 63 0 0 Pass 0.0944 59 0 0 Pass 0.0959 53 0 0 Pass 0.0973 49 0 0 Pass 0.0988 46 0 0 Pass 0.1003 42 0 0 Pass 0.1017 38 0 0 Pass 0.1032 35 0 0 Pass 0.1046 33 0 0 Pass 0.1061 31 0 0 Pass 0.1076 31 0 0 Pass 0.1090 30 0 0 Pass 0.1105 27 0 0 Pass 0.1120 26 0 0 Pass 0.1134 24 0 0 Pass 0.1149 23 0 0 Pass 0.1164 23 0 0 Pass 0.1178 21 0 0 Pass 0.1193 19 0 0 Pass DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:46:39 PM Page 56 0.1207 18 0 0 Pass 0.1222 17 0 0 Pass 0.1237 17 0 0 Pass 0.1251 16 0 0 Pass 0.1266 14 0 0 Pass 0.1281 14 0 0 Pass 0.1295 13 0 0 Pass 0.1310 12 0 0 Pass 0.1325 12 0 0 Pass 0.1339 12 0 0 Pass 0.1354 12 0 0 Pass 0.1369 12 0 0 Pass 0.1383 10 0 0 Pass 0.1398 9 0 0 Pass 0.1412 9 0 0 Pass 0.1427 7 0 0 Pass 0.1442 7 0 0 Pass 0.1456 7 0 0 Pass 0.1471 6 0 0 Pass 0.1486 6 0 0 Pass 0.1500 6 0 0 Pass 0.1515 6 0 0 Pass 0.1530 6 0 0 Pass 0.1544 6 0 0 Pass 0.1559 5 0 0 Pass 0.1573 4 0 0 Pass 0.1588 3 0 0 Pass 0.1603 3 0 0 Pass 0.1617 3 0 0 Pass 0.1632 3 0 0 Pass 0.1647 3 0 0 Pass 0.1661 3 0 0 Pass 0.1676 3 0 0 Pass 0.1691 3 0 0 Pass 0.1705 3 0 0 Pass 0.1720 3 0 0 Pass 0.1734 3 0 0 Pass 0.1749 3 0 0 Pass 0.1764 3 0 0 Pass 0.1778 3 0 0 Pass 0.1793 2 0 0 Pass 0.1808 2 0 0 Pass 0.1822 2 0 0 Pass 0.1837 2 0 0 Pass 0.1852 2 0 0 Pass 0.1866 2 0 0 Pass 0.1881 2 0 0 Pass DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:46:39 PM Page 57 Water Quality Water Quality BMP Flow and Volume for POC #1 On-line facility volume:0 acre-feet On-line facility target flow:0 cfs. Adjusted for 15 min:0 cfs. Off-line facility target flow:0 cfs. Adjusted for 15 min:0 cfs. DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:46:39 PM Page 58 LID Report DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:00 PM Page 59 POC 2 POC #2 was not reported because POC must exist in both scenarios and both scenarios must have been run. DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:00 PM Page 60 POC 3 POC #3 was not reported because POC must exist in both scenarios and both scenarios must have been run. DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:00 PM Page 61 POC 4 POC #4 was not reported because POC must exist in both scenarios and both scenarios must have been run. DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:00 PM Page 62 Model Default Modifications Total of 0 changes have been made. PERLND Changes No PERLND changes have been made. IMPLND Changes No IMPLND changes have been made. DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:00 PM Page 63 Appendix Predeveloped Schematic DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:00 PM Page 64 Mitigated Schematic DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 65 Predeveloped UCI File RUN GLOBAL WWHM4 model simulation START 1948 10 01 END 2009 09 30 RUN INTERP OUTPUT LEVEL 3 0 RESUME 0 RUN 1 UNIT SYSTEM 1 END GLOBAL FILES <File> <Un#> <-----------File Name------------------------------>*** <-ID-> *** WDM 26 WWHM_Road_disconnectedTrench_10122023.wdm MESSU 25 PreWWHM_Road_disconnectedTrench_10122023.MES 27 PreWWHM_Road_disconnectedTrench_10122023.L61 28 PreWWHM_Road_disconnectedTrench_10122023.L62 30 POCWWHM_Road_disconnectedTrench_101220231.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 PERLND 10 IMPLND 1 COPY 501 DISPLY 1 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #<----------Title----------->***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Basin 167+87.01-168.54.3 MAX 1 2 30 9 END DISPLY-INFO1 END DISPLY COPY TIMESERIES # - # NPT NMN *** 1 1 1 501 1 1 END TIMESERIES END COPY GENER OPCODE # # OPCD *** END OPCODE PARM # # K *** END PARM END GENER PERLND GEN-INFO <PLS ><-------Name------->NBLKS Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 10 C, Forest, Flat 1 1 1 1 27 0 END GEN-INFO *** Section PWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC *** 10 0 0 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ***************************** PIVL PYR # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ********* 10 0 0 4 0 0 0 0 0 0 0 0 0 1 9 END PRINT-INFO DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 66 PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 10 0 0 0 0 0 0 0 0 0 0 0 END PWAT-PARM1 PWAT-PARM2 <PLS > PWATER input info: Part 2 *** # - # ***FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC 10 0 4.5 0.08 400 0.05 0.5 0.996 END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP 10 0 0 2 2 0 0 0 END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 10 0.2 0.5 0.35 6 0.5 0.7 END PWAT-PARM4 PWAT-STATE1 <PLS > *** Initial conditions at start of simulation ran from 1990 to end of 1992 (pat 1-11-95) RUN 21 *** # - # *** CEPS SURS UZS IFWS LZS AGWS GWVS 10 0 0 0 0 2.5 1 0 END PWAT-STATE1 END PERLND IMPLND GEN-INFO <PLS ><-------Name-------> Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 1 ROADS/FLAT 1 1 1 27 0 END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** 1 0 0 1 0 0 0 END ACTIVITY PRINT-INFO <ILS > ******** Print-flags ******** PIVL PYR # - # ATMP SNOW IWAT SLD IWG IQAL ********* 1 0 0 4 0 0 0 1 9 END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** 1 0 0 0 0 0 END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC 1 400 0.01 0.1 0.1 END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN 1 0 0 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 67 END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS 1 0 0 END IWAT-STATE1 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 167+87.01-168.54.36*** PERLND 10 0.047337 COPY 501 12 PERLND 10 0.047337 COPY 501 13 IMPLND 1 0.020684 COPY 501 15 Basin 168+96.69-170+08.23*** PERLND 10 0.066644 COPY 501 12 PERLND 10 0.066644 COPY 501 13 IMPLND 1 0.033012 COPY 501 15 Basin 170+48.49- 171+16.87*** PERLND 10 0.04876 COPY 501 12 PERLND 10 0.04876 COPY 501 13 IMPLND 1 0.023462 COPY 501 15 Basin 171+55.64-172+36.32*** PERLND 10 0.052273 COPY 501 12 PERLND 10 0.052273 COPY 501 13 IMPLND 1 0.02174 COPY 501 15 Basin 172+70-175+55*** PERLND 10 0.093411 COPY 501 12 PERLND 10 0.093411 COPY 501 13 IMPLND 1 0.071901 COPY 501 15 Basin 175+65.93-177+38.28*** PERLND 10 0.143205 COPY 501 12 PERLND 10 0.143205 COPY 501 13 IMPLND 1 0.037672 COPY 501 15 Basin 178+27.33-181+48.90*** PERLND 10 0.131359 COPY 501 12 PERLND 10 0.131359 COPY 501 13 IMPLND 1 0.095225 COPY 501 15 ******Routing****** END SCHEMATIC NETWORK <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** COPY 501 OUTPUT MEAN 1 1 48.4 DISPLY 1 INPUT TIMSER 1 <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** END NETWORK RCHRES GEN-INFO RCHRES Name Nexits Unit Systems Printer *** # - #<------------------><---> User T-series Engl Metr LKFG *** in out *** END GEN-INFO *** Section RCHRES*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** END ACTIVITY PRINT-INFO DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 68 <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* END PRINT-INFO HYDR-PARM1 RCHRES Flags for each HYDR Section *** # - # VC A1 A2 A3 ODFVFG for each *** ODGTFG for each FUNCT for each FG FG FG FG possible exit *** possible exit possible exit * * * * * * * * * * * * * * *** END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** <------><--------><--------><--------><--------><--------><--------> *** END HYDR-PARM2 HYDR-INIT RCHRES Initial conditions for each HYDR section *** # - # *** VOL Initial value of COLIND Initial value of OUTDGT *** ac-ft for each possible exit for each possible exit <------><--------> <---><---><---><---><---> *** <---><---><---><---><---> END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS FTABLES END FTABLES EXT SOURCES <-Volume-> <Member> SsysSgap<--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # tem strg<-factor->strg <Name> # # <Name> # # *** WDM 2 PREC ENGL 0.8 PERLND 1 999 EXTNL PREC WDM 2 PREC ENGL 0.8 IMPLND 1 999 EXTNL PREC WDM 1 EVAP ENGL 0.76 PERLND 1 999 EXTNL PETINP WDM 1 EVAP ENGL 0.76 IMPLND 1 999 EXTNL PETINP END EXT SOURCES EXT TARGETS <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Volume-> <Member> Tsys Tgap Amd *** <Name> # <Name> # #<-factor->strg <Name> # <Name> tem strg strg*** COPY 501 OUTPUT MEAN 1 1 48.4 WDM 501 FLOW ENGL REPL END EXT TARGETS MASS-LINK <Volume> <-Grp> <-Member-><--Mult--> <Target> <-Grp> <-Member->*** <Name> <Name> # #<-factor-> <Name> <Name> # #*** MASS-LINK 12 PERLND PWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 12 MASS-LINK 13 PERLND PWATER IFWO 0.083333 COPY INPUT MEAN END MASS-LINK 13 MASS-LINK 15 IMPLND IWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 15 END MASS-LINK END RUN DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 69 Mitigated UCI File RUN GLOBAL WWHM4 model simulation START 1948 10 01 END 2009 09 30 RUN INTERP OUTPUT LEVEL 3 0 RESUME 0 RUN 1 UNIT SYSTEM 1 END GLOBAL FILES <File> <Un#> <-----------File Name------------------------------>*** <-ID-> *** WDM 26 WWHM_Road_disconnectedTrench_10122023.wdm MESSU 25 MitWWHM_Road_disconnectedTrench_10122023.MES 27 MitWWHM_Road_disconnectedTrench_10122023.L61 28 MitWWHM_Road_disconnectedTrench_10122023.L62 30 POCWWHM_Road_disconnectedTrench_101220231.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 PERLND 16 IMPLND 1 IMPLND 5 IMPLND 8 RCHRES 1 RCHRES 2 RCHRES 3 RCHRES 4 RCHRES 5 RCHRES 6 RCHRES 7 RCHRES 8 RCHRES 9 RCHRES 10 RCHRES 11 RCHRES 12 RCHRES 13 RCHRES 14 RCHRES 15 COPY 1 COPY 501 DISPLY 1 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #<----------Title----------->***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Surface 33-181+48.90 MAX 1 2 30 9 END DISPLY-INFO1 END DISPLY COPY TIMESERIES # - # NPT NMN *** 1 1 1 501 1 1 END TIMESERIES END COPY GENER OPCODE # # OPCD *** END OPCODE PARM # # K *** END PARM END GENER PERLND GEN-INFO DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 70 <PLS ><-------Name------->NBLKS Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 16 C, Lawn, Flat 1 1 1 1 27 0 END GEN-INFO *** Section PWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC *** 16 0 0 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ***************************** PIVL PYR # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ********* 16 0 0 4 0 0 0 0 0 0 0 0 0 1 9 END PRINT-INFO PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 16 0 0 0 0 0 0 0 0 0 0 0 END PWAT-PARM1 PWAT-PARM2 <PLS > PWATER input info: Part 2 *** # - # ***FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC 16 0 4.5 0.03 400 0.05 0.5 0.996 END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP 16 0 0 2 2 0 0 0 END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 16 0.1 0.25 0.25 6 0.5 0.25 END PWAT-PARM4 PWAT-STATE1 <PLS > *** Initial conditions at start of simulation ran from 1990 to end of 1992 (pat 1-11-95) RUN 21 *** # - # *** CEPS SURS UZS IFWS LZS AGWS GWVS 16 0 0 0 0 2.5 1 0 END PWAT-STATE1 END PERLND IMPLND GEN-INFO <PLS ><-------Name-------> Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 1 ROADS/FLAT 1 1 1 27 0 5 DRIVEWAYS/FLAT 1 1 1 27 0 8 SIDEWALKS/FLAT 1 1 1 27 0 END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** 1 0 0 1 0 0 0 5 0 0 1 0 0 0 8 0 0 1 0 0 0 END ACTIVITY DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 71 PRINT-INFO <ILS > ******** Print-flags ******** PIVL PYR # - # ATMP SNOW IWAT SLD IWG IQAL ********* 1 0 0 4 0 0 0 1 9 5 0 0 4 0 0 0 1 9 8 0 0 4 0 0 0 1 9 END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** 1 0 0 0 0 0 5 0 0 0 0 0 8 0 0 0 0 0 END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC 1 400 0.01 0.1 0.1 5 400 0.01 0.1 0.1 8 400 0.01 0.1 0.1 END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN 1 0 0 5 0 0 8 0 0 END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS 1 0 0 5 0 0 8 0 0 END IWAT-STATE1 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 156+37.49 - 158+87*** PERLND 16 0.0645 RCHRES 1 2 PERLND 16 0.0645 RCHRES 1 3 IMPLND 1 0.0935 RCHRES 1 5 IMPLND 5 0.0112 RCHRES 1 5 IMPLND 8 0.0576 RCHRES 1 5 Basin 167+87.01-168.54.36*** IMPLND 1 0.037 RCHRES 3 5 IMPLND 5 0.0103 RCHRES 3 5 IMPLND 8 0.0207 RCHRES 3 5 Basin 168+96.69-170+08.23*** IMPLND 1 0.0592 RCHRES 6 5 IMPLND 5 0.0075 RCHRES 6 5 IMPLND 8 0.033 RCHRES 6 5 Basin 170+48.49- 171+16.87*** IMPLND 1 0.0418 RCHRES 8 5 IMPLND 5 0.007 RCHRES 8 5 IMPLND 8 0.0235 RCHRES 8 5 Basin 171+55.64-172+36.32*** IMPLND 1 0.0463 RCHRES 10 5 IMPLND 5 0.006 RCHRES 10 5 IMPLND 8 0.0217 RCHRES 10 5 Basin172+70-175+55*** IMPLND 1 0.0903 RCHRES 5 5 IMPLND 8 0.0719 RCHRES 5 5 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 72 Basin 175+65.93-177+38.28*** IMPLND 1 0.0903 RCHRES 12 5 IMPLND 5 0.0529 RCHRES 12 5 IMPLND 8 0.0377 RCHRES 12 5 Basin 178+27.33-181+48.90*** IMPLND 1 0.1314 RCHRES 14 5 IMPLND 8 0.0952 RCHRES 14 5 ******Routing****** RCHRES 1 1 RCHRES 2 8 RCHRES 4 1 RCHRES 6 7 RCHRES 3 1 RCHRES 6 7 RCHRES 3 1 RCHRES 4 8 RCHRES 7 1 RCHRES 8 7 RCHRES 6 1 RCHRES 8 7 RCHRES 6 1 RCHRES 7 8 RCHRES 9 1 RCHRES 10 7 RCHRES 8 1 RCHRES 10 7 RCHRES 8 1 RCHRES 9 8 RCHRES 11 1 RCHRES 12 7 RCHRES 10 1 RCHRES 12 7 RCHRES 10 1 RCHRES 11 8 RCHRES 5 1 RCHRES 12 7 RCHRES 13 1 RCHRES 14 7 RCHRES 13 COPY 1 17 RCHRES 12 1 RCHRES 14 7 RCHRES 12 COPY 1 17 RCHRES 12 1 RCHRES 13 8 RCHRES 14 1 RCHRES 15 8 IMPLND 1 0.131359 COPY 1 15 IMPLND 8 0.095225 COPY 1 15 RCHRES 15 1 COPY 501 17 RCHRES 14 1 COPY 501 17 END SCHEMATIC NETWORK <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** COPY 501 OUTPUT MEAN 1 1 48.4 DISPLY 1 INPUT TIMSER 1 <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** END NETWORK RCHRES GEN-INFO RCHRES Name Nexits Unit Systems Printer *** # - #<------------------><---> User T-series Engl Metr LKFG *** in out *** 1 Surface .49 - 15-022 2 1 1 1 28 0 1 2 Bioretention 156-021 2 1 1 1 28 0 1 3 Surface 01-168.5-024 2 1 1 1 28 0 1 4 Bioretention 16-023 2 1 1 1 28 0 1 5 Infiltration 172-031 2 1 1 1 28 0 1 6 Surface 69-170+0-026 2 1 1 1 28 0 1 7 Bioretention 168-025 2 1 1 1 28 0 1 8 Surface 9- 171+1-028 2 1 1 1 28 0 1 9 Bioretention 170-027 2 1 1 1 28 0 1 10 Surface 64-172+3-030 2 1 1 1 28 0 1 11 Bioretention 171-029 2 1 1 1 28 0 1 12 Surface 93-177+3-033 2 1 1 1 28 0 1 13 SPLIT Bioretenti-032 2 1 1 1 28 0 1 14 Surface 33-181+4-035 2 1 1 1 28 0 1 15 Bioretention 178-034 2 1 1 1 28 0 1 END GEN-INFO *** Section RCHRES*** ACTIVITY DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 73 <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** 1 1 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 3 1 0 0 0 0 0 0 0 0 0 4 1 0 0 0 0 0 0 0 0 0 5 1 0 0 0 0 0 0 0 0 0 6 1 0 0 0 0 0 0 0 0 0 7 1 0 0 0 0 0 0 0 0 0 8 1 0 0 0 0 0 0 0 0 0 9 1 0 0 0 0 0 0 0 0 0 10 1 0 0 0 0 0 0 0 0 0 11 1 0 0 0 0 0 0 0 0 0 12 1 0 0 0 0 0 0 0 0 0 13 1 0 0 0 0 0 0 0 0 0 14 1 0 0 0 0 0 0 0 0 0 15 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* 1 4 0 0 0 0 0 0 0 0 0 1 9 2 4 0 0 0 0 0 0 0 0 0 1 9 3 4 0 0 0 0 0 0 0 0 0 1 9 4 4 0 0 0 0 0 0 0 0 0 1 9 5 4 0 0 0 0 0 0 0 0 0 1 9 6 4 0 0 0 0 0 0 0 0 0 1 9 7 4 0 0 0 0 0 0 0 0 0 1 9 8 4 0 0 0 0 0 0 0 0 0 1 9 9 4 0 0 0 0 0 0 0 0 0 1 9 10 4 0 0 0 0 0 0 0 0 0 1 9 11 4 0 0 0 0 0 0 0 0 0 1 9 12 4 0 0 0 0 0 0 0 0 0 1 9 13 4 0 0 0 0 0 0 0 0 0 1 9 14 4 0 0 0 0 0 0 0 0 0 1 9 15 4 0 0 0 0 0 0 0 0 0 1 9 END PRINT-INFO HYDR-PARM1 RCHRES Flags for each HYDR Section *** # - # VC A1 A2 A3 ODFVFG for each *** ODGTFG for each FUNCT for each FG FG FG FG possible exit *** possible exit possible exit * * * * * * * * * * * * * * *** 1 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 2 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 3 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 4 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 5 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 6 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 7 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 8 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 9 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 10 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 11 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 12 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 13 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 14 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 15 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** <------><--------><--------><--------><--------><--------><--------> *** 1 1 0.01 0.0 0.0 0.0 0.0 2 2 0.05 0.0 0.0 0.0 0.0 3 3 0.01 0.0 0.0 0.0 0.0 4 4 0.01 0.0 0.0 0.0 0.0 5 5 0.05 0.0 0.0 0.5 0.0 6 6 0.01 0.0 0.0 0.0 0.0 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 74 7 7 0.02 0.0 0.0 0.0 0.0 8 8 0.01 0.0 0.0 0.0 0.0 9 9 0.01 0.0 0.0 0.0 0.0 10 10 0.01 0.0 0.0 0.0 0.0 11 11 0.02 0.0 0.0 0.0 0.0 12 12 0.01 0.0 0.0 0.0 0.0 13 13 0.02 0.0 0.0 0.0 0.0 14 14 0.01 0.0 0.0 0.0 0.0 15 15 0.06 0.0 0.0 0.0 0.0 END HYDR-PARM2 HYDR-INIT RCHRES Initial conditions for each HYDR section *** # - # *** VOL Initial value of COLIND Initial value of OUTDGT *** ac-ft for each possible exit for each possible exit <------><--------> <---><---><---><---><---> *** <---><---><---><---><---> 1 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS FTABLES FTABLE 2 74 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.022912 0.000000 0.000000 0.000000 0.109890 0.022912 0.001151 0.000000 0.000000 0.219780 0.022912 0.002303 0.000000 0.000000 0.329670 0.022912 0.003454 0.000000 0.000156 0.439560 0.022912 0.004606 0.000000 0.000733 0.549451 0.022912 0.005757 0.000000 0.000820 0.659341 0.022912 0.006908 0.000000 0.001889 0.769231 0.022912 0.008060 0.000000 0.001928 0.879121 0.022912 0.009211 0.000000 0.003680 0.989011 0.022912 0.010362 0.000000 0.003749 1.098901 0.022912 0.011514 0.000000 0.006177 1.208791 0.022912 0.012665 0.000000 0.006417 1.318681 0.022912 0.013817 0.000000 0.009507 1.428571 0.022912 0.014968 0.000000 0.009987 1.538462 0.022912 0.016013 0.000000 0.013750 1.648352 0.022912 0.017058 0.000000 0.014543 1.758242 0.022912 0.018103 0.000000 0.018482 1.868132 0.022912 0.019148 0.000000 0.018482 1.978022 0.022912 0.020192 0.000000 0.018482 2.087912 0.022912 0.021237 0.000000 0.018482 2.197802 0.022912 0.022282 0.000000 0.018482 2.307692 0.022912 0.023327 0.000000 0.018482 2.417582 0.022912 0.024372 0.000000 0.018482 2.527473 0.022912 0.025417 0.000000 0.018482 2.637363 0.022912 0.026462 0.000000 0.018482 2.747253 0.022912 0.027507 0.000000 0.018482 2.857143 0.022912 0.028551 0.000000 0.018482 2.967033 0.022912 0.029596 0.000000 0.018482 3.076923 0.022912 0.030641 0.000000 0.018482 3.186813 0.022912 0.031686 0.000000 0.018482 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 75 3.296703 0.022912 0.032731 0.000000 0.018482 3.406593 0.022912 0.033776 0.000000 0.018482 3.516484 0.022912 0.034821 0.000000 0.018482 3.626374 0.022912 0.035866 0.000000 0.018482 3.736264 0.022912 0.036910 0.000000 0.018482 3.846154 0.022912 0.037955 0.000000 0.018482 3.956044 0.022912 0.039000 0.000000 0.018482 4.065934 0.022912 0.040045 0.000000 0.018482 4.175824 0.022912 0.041090 0.000000 0.018482 4.285714 0.022912 0.042135 0.000000 0.018482 4.395604 0.022912 0.043180 0.000000 0.018482 4.505495 0.022912 0.044225 0.000000 0.018482 4.615385 0.022912 0.045270 0.000000 0.018482 4.725275 0.022912 0.046314 0.000000 0.018482 4.835165 0.022912 0.047359 0.000000 0.018482 4.945055 0.022912 0.048404 0.000000 0.018482 5.054945 0.022912 0.049449 0.000000 0.018482 5.164835 0.022912 0.050494 0.000000 0.018482 5.274725 0.022912 0.051539 0.000000 0.018482 5.384615 0.022912 0.052584 0.000000 0.018482 5.494505 0.022912 0.053629 0.000000 0.018482 5.604396 0.022912 0.054673 0.000000 0.018482 5.714286 0.022912 0.055718 0.000000 0.018482 5.824176 0.022912 0.056763 0.000000 0.018482 5.934066 0.022912 0.057808 0.000000 0.018482 6.043956 0.022912 0.058853 0.000000 0.018482 6.153846 0.022912 0.059898 0.000000 0.018482 6.263736 0.022912 0.060943 0.000000 0.018482 6.373626 0.022912 0.061988 0.000000 0.018482 6.483516 0.022912 0.063033 0.000000 0.018482 6.593407 0.022912 0.064077 0.000000 0.018482 6.703297 0.022912 0.065122 0.000000 0.018482 6.813187 0.022912 0.066167 0.000000 0.018482 6.923077 0.022912 0.067212 0.000000 0.018482 7.032967 0.022912 0.068257 0.000000 0.018482 7.142857 0.022912 0.069302 0.000000 0.018482 7.252747 0.022912 0.070347 0.000000 0.018482 7.362637 0.022912 0.071392 0.000000 0.018482 7.472527 0.022912 0.072436 0.000000 0.018482 7.582418 0.022912 0.073481 0.000000 0.018482 7.692308 0.022912 0.074526 0.000000 0.018482 7.802198 0.022912 0.075571 0.000000 0.018482 7.912088 0.022912 0.076616 0.000000 0.018482 8.000000 0.022912 0.077834 0.000000 0.018482 END FTABLE 2 FTABLE 1 20 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.022912 0.000000 0.000000 0.000000 0.109890 0.022912 0.002518 0.000000 0.018482 0.219780 0.022912 0.005036 0.000000 0.018482 0.329670 0.022912 0.007553 0.000000 0.018482 0.439560 0.022912 0.010071 0.000000 0.018482 0.549451 0.022912 0.012589 0.000000 0.018482 0.659341 0.022912 0.015107 0.000000 0.018482 0.769231 0.022912 0.017624 0.000000 0.018482 0.879121 0.022912 0.020142 0.000000 0.018482 0.989011 0.022912 0.022660 0.000000 0.018482 1.098901 0.022912 0.025178 0.659242 0.018482 1.208791 0.022912 0.027696 2.010935 0.018482 1.318681 0.022912 0.030213 3.731796 0.018482 1.428571 0.022912 0.032731 5.637608 0.018482 1.538462 0.022912 0.035249 7.542349 0.018482 1.648352 0.022912 0.037767 9.264852 0.018482 1.758242 0.022912 0.040285 10.66024 0.018482 1.868132 0.022912 0.042802 11.66425 0.018482 1.978022 0.022912 0.045320 12.34684 0.018482 2.000000 0.022912 0.045824 13.14064 0.018482 END FTABLE 1 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 76 FTABLE 4 72 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.006185 0.000000 0.000000 0.000000 0.098901 0.006185 0.000280 0.000000 0.000000 0.197802 0.006185 0.000559 0.000000 0.000000 0.296703 0.006185 0.000839 0.000000 0.000051 0.395604 0.006185 0.001119 0.000000 0.000180 0.494505 0.006185 0.001399 0.000000 0.000281 0.593407 0.006185 0.001678 0.000000 0.000414 0.692308 0.006185 0.001958 0.000000 0.000580 0.791209 0.006185 0.002238 0.000000 0.000781 0.890110 0.006185 0.002517 0.000000 0.001022 0.989011 0.006185 0.002797 0.000000 0.001304 1.087912 0.006185 0.003077 0.000000 0.001628 1.186813 0.006185 0.003357 0.000000 0.001871 1.285714 0.006185 0.003636 0.000000 0.001871 1.384615 0.006185 0.003916 0.000000 0.001871 1.483516 0.006185 0.004196 0.000000 0.001871 1.582418 0.006185 0.004450 0.000000 0.001871 1.681319 0.006185 0.004703 0.000000 0.001871 1.780220 0.006185 0.004957 0.000000 0.001871 1.879121 0.006185 0.005211 0.000000 0.001871 1.978022 0.006185 0.005465 0.000000 0.001871 2.076923 0.006185 0.005719 0.000000 0.001871 2.175824 0.006185 0.005973 0.000000 0.001871 2.274725 0.006185 0.006226 0.000000 0.001871 2.373626 0.006185 0.006480 0.000000 0.001871 2.472527 0.006185 0.006734 0.000000 0.001871 2.571429 0.006185 0.006988 0.000000 0.001871 2.670330 0.006185 0.007242 0.000000 0.001871 2.769231 0.006185 0.007496 0.000000 0.001871 2.868132 0.006185 0.007749 0.000000 0.001871 2.967033 0.006185 0.008003 0.000000 0.001871 3.065934 0.006185 0.008257 0.000000 0.001871 3.164835 0.006185 0.008511 0.000000 0.001871 3.263736 0.006185 0.008765 0.000000 0.001871 3.362637 0.006185 0.009019 0.000000 0.001871 3.461538 0.006185 0.009272 0.000000 0.001871 3.560440 0.006185 0.009526 0.000000 0.001871 3.659341 0.006185 0.009780 0.000000 0.001871 3.758242 0.006185 0.010034 0.000000 0.001871 3.857143 0.006185 0.010288 0.000000 0.001871 3.956044 0.006185 0.010542 0.000000 0.001871 4.054945 0.006185 0.010796 0.000000 0.001871 4.153846 0.006185 0.011049 0.000000 0.001871 4.252747 0.006185 0.011303 0.000000 0.001871 4.351648 0.006185 0.011557 0.000000 0.001871 4.450549 0.006185 0.011811 0.000000 0.001871 4.549451 0.006185 0.012065 0.000000 0.001871 4.648352 0.006185 0.012319 0.000000 0.001871 4.747253 0.006185 0.012572 0.000000 0.001871 4.846154 0.006185 0.012826 0.000000 0.001871 4.945055 0.006185 0.013080 0.000000 0.001871 5.043956 0.006185 0.013334 0.000000 0.001871 5.142857 0.006185 0.013588 0.000000 0.001871 5.241758 0.006185 0.013842 0.000000 0.001871 5.340659 0.006185 0.014095 0.000000 0.001871 5.439560 0.006185 0.014349 0.000000 0.001871 5.538462 0.006185 0.014603 0.000000 0.001871 5.637363 0.006185 0.014857 0.000000 0.001871 5.736264 0.006185 0.015111 0.000000 0.001871 5.835165 0.006185 0.015365 0.000000 0.001871 5.934066 0.006185 0.015618 0.000000 0.001871 6.032967 0.006185 0.015872 0.000000 0.001871 6.131868 0.006185 0.016126 0.000000 0.001871 6.230769 0.006185 0.016380 0.000000 0.001871 6.329670 0.006185 0.016634 0.000000 0.001871 6.428571 0.006185 0.016888 0.000000 0.001871 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 77 6.527473 0.006185 0.017141 0.029310 0.001871 6.626374 0.006185 0.017395 0.029310 0.001871 6.725275 0.006185 0.017649 0.029310 0.001871 6.824176 0.006185 0.017903 0.029310 0.001871 6.923077 0.006185 0.018157 0.029310 0.001871 7.000000 0.006185 0.018999 0.029310 0.001871 END FTABLE 4 FTABLE 3 22 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.006185 0.000000 0.000000 0.000000 0.098901 0.006185 0.000612 0.000000 0.018708 0.197802 0.006185 0.001223 0.000000 0.021175 0.296703 0.006185 0.001835 0.000000 0.022409 0.395604 0.006185 0.002447 0.000000 0.023642 0.494505 0.006185 0.003058 0.000000 0.024876 0.593407 0.006185 0.003670 0.000000 0.026109 0.692308 0.006185 0.004282 0.000000 0.027343 0.791209 0.006185 0.004893 0.000000 0.028576 0.890110 0.006185 0.005505 0.000000 0.029810 0.989011 0.006185 0.006117 0.000000 0.031044 1.087912 0.006185 0.006728 0.552618 0.031181 1.186813 0.006185 0.007340 1.704888 0.031181 1.285714 0.006185 0.007952 3.187839 0.031181 1.384615 0.006185 0.008563 4.864869 0.031181 1.483516 0.006185 0.009175 6.601841 0.031181 1.582418 0.006185 0.009787 8.262573 0.031181 1.681319 0.006185 0.010398 9.722741 0.031181 1.780220 0.006185 0.011010 10.89241 0.031181 1.879121 0.006185 0.011622 11.74434 0.031181 1.978022 0.006185 0.012233 12.34684 0.031181 2.000000 0.006185 0.012369 13.07410 0.031181 END FTABLE 3 FTABLE 7 72 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.010242 0.000000 0.000000 0.000000 0.098901 0.010242 0.000463 0.000000 0.000000 0.197802 0.010242 0.000926 0.000000 0.000000 0.296703 0.010242 0.001390 0.000000 0.000084 0.395604 0.010242 0.001853 0.000000 0.000297 0.494505 0.010242 0.002316 0.000000 0.000466 0.593407 0.010242 0.002779 0.000000 0.000685 0.692308 0.010242 0.003243 0.000000 0.000960 0.791209 0.010242 0.003706 0.000000 0.001294 0.890110 0.010242 0.004169 0.000000 0.001693 0.989011 0.010242 0.004632 0.000000 0.002159 1.087912 0.010242 0.005096 0.000000 0.002697 1.186813 0.010242 0.005559 0.000000 0.003098 1.285714 0.010242 0.006022 0.000000 0.003098 1.384615 0.010242 0.006485 0.000000 0.003098 1.483516 0.010242 0.006949 0.000000 0.003098 1.582418 0.010242 0.007369 0.000000 0.003098 1.681319 0.010242 0.007789 0.000000 0.003098 1.780220 0.010242 0.008210 0.000000 0.003098 1.879121 0.010242 0.008630 0.000000 0.003098 1.978022 0.010242 0.009051 0.000000 0.003098 2.076923 0.010242 0.009471 0.000000 0.003098 2.175824 0.010242 0.009891 0.000000 0.003098 2.274725 0.010242 0.010312 0.000000 0.003098 2.373626 0.010242 0.010732 0.000000 0.003098 2.472527 0.010242 0.011152 0.000000 0.003098 2.571429 0.010242 0.011573 0.000000 0.003098 2.670330 0.010242 0.011993 0.000000 0.003098 2.769231 0.010242 0.012414 0.000000 0.003098 2.868132 0.010242 0.012834 0.000000 0.003098 2.967033 0.010242 0.013254 0.000000 0.003098 3.065934 0.010242 0.013675 0.000000 0.003098 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 78 3.164835 0.010242 0.014095 0.000000 0.003098 3.263736 0.010242 0.014516 0.000000 0.003098 3.362637 0.010242 0.014936 0.000000 0.003098 3.461538 0.010242 0.015356 0.000000 0.003098 3.560440 0.010242 0.015777 0.000000 0.003098 3.659341 0.010242 0.016197 0.000000 0.003098 3.758242 0.010242 0.016618 0.000000 0.003098 3.857143 0.010242 0.017038 0.000000 0.003098 3.956044 0.010242 0.017458 0.000000 0.003098 4.054945 0.010242 0.017879 0.000000 0.003098 4.153846 0.010242 0.018299 0.000000 0.003098 4.252747 0.010242 0.018719 0.000000 0.003098 4.351648 0.010242 0.019140 0.000000 0.003098 4.450549 0.010242 0.019560 0.000000 0.003098 4.549451 0.010242 0.019981 0.000000 0.003098 4.648352 0.010242 0.020401 0.000000 0.003098 4.747253 0.010242 0.020821 0.000000 0.003098 4.846154 0.010242 0.021242 0.000000 0.003098 4.945055 0.010242 0.021662 0.000000 0.003098 5.043956 0.010242 0.022083 0.000000 0.003098 5.142857 0.010242 0.022503 0.000000 0.003098 5.241758 0.010242 0.022923 0.000000 0.003098 5.340659 0.010242 0.023344 0.000000 0.003098 5.439560 0.010242 0.023764 0.000000 0.003098 5.538462 0.010242 0.024185 0.000000 0.003098 5.637363 0.010242 0.024605 0.000000 0.003098 5.736264 0.010242 0.025025 0.000000 0.003098 5.835165 0.010242 0.025446 0.000000 0.003098 5.934066 0.010242 0.025866 0.000000 0.003098 6.032967 0.010242 0.026287 0.000000 0.003098 6.131868 0.010242 0.026707 0.000000 0.003098 6.230769 0.010242 0.027127 0.048541 0.003098 6.329670 0.010242 0.027548 0.048541 0.003098 6.428571 0.010242 0.027968 0.048541 0.003098 6.527473 0.010242 0.028388 0.048541 0.003098 6.626374 0.010242 0.028809 0.048541 0.003098 6.725275 0.010242 0.029229 0.048541 0.003098 6.824176 0.010242 0.029650 0.048541 0.003098 6.923077 0.010242 0.030070 0.048541 0.003098 7.000000 0.010242 0.031464 0.048541 0.003098 END FTABLE 7 FTABLE 6 22 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.010242 0.000000 0.000000 0.000000 0.098901 0.010242 0.001013 0.000000 0.030983 0.197802 0.010242 0.002026 0.000000 0.035069 0.296703 0.010242 0.003039 0.000000 0.037112 0.395604 0.010242 0.004052 0.000000 0.039155 0.494505 0.010242 0.005065 0.000000 0.041198 0.593407 0.010242 0.006078 0.000000 0.043241 0.692308 0.010242 0.007091 0.000000 0.045283 0.791209 0.010242 0.008104 0.000000 0.047326 0.890110 0.010242 0.009117 0.000000 0.049369 0.989011 0.010242 0.010130 0.000000 0.051412 1.087912 0.010242 0.011143 0.552618 0.051639 1.186813 0.010242 0.012156 1.704888 0.051639 1.285714 0.010242 0.013169 3.187839 0.051639 1.384615 0.010242 0.014182 4.864869 0.051639 1.483516 0.010242 0.015195 6.601841 0.051639 1.582418 0.010242 0.016208 8.262573 0.051639 1.681319 0.010242 0.017221 9.722741 0.051639 1.780220 0.010242 0.018234 10.89241 0.051639 1.879121 0.010242 0.019247 11.74434 0.051639 1.978022 0.010242 0.020260 12.34684 0.051639 2.000000 0.010242 0.020485 13.07410 0.051639 END FTABLE 6 FTABLE 9 72 5 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 79 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.006279 0.000000 0.000000 0.000000 0.098901 0.006279 0.000284 0.000000 0.000000 0.197802 0.006279 0.000568 0.000000 0.000000 0.296703 0.006279 0.000852 0.000000 0.000052 0.395604 0.006279 0.001136 0.000000 0.000182 0.494505 0.006279 0.001420 0.000000 0.000286 0.593407 0.006279 0.001704 0.000000 0.000420 0.692308 0.006279 0.001988 0.000000 0.000588 0.791209 0.006279 0.002272 0.000000 0.000793 0.890110 0.006279 0.002556 0.000000 0.001038 0.989011 0.006279 0.002840 0.000000 0.001324 1.087912 0.006279 0.003124 0.000000 0.001653 1.186813 0.006279 0.003408 0.000000 0.001899 1.285714 0.006279 0.003692 0.000000 0.001899 1.384615 0.006279 0.003976 0.000000 0.001899 1.483516 0.006279 0.004260 0.000000 0.001899 1.582418 0.006279 0.004518 0.000000 0.001899 1.681319 0.006279 0.004775 0.000000 0.001899 1.780220 0.006279 0.005033 0.000000 0.001899 1.879121 0.006279 0.005291 0.000000 0.001899 1.978022 0.006279 0.005548 0.000000 0.001899 2.076923 0.006279 0.005806 0.000000 0.001899 2.175824 0.006279 0.006064 0.000000 0.001899 2.274725 0.006279 0.006322 0.000000 0.001899 2.373626 0.006279 0.006579 0.000000 0.001899 2.472527 0.006279 0.006837 0.000000 0.001899 2.571429 0.006279 0.007095 0.000000 0.001899 2.670330 0.006279 0.007353 0.000000 0.001899 2.769231 0.006279 0.007610 0.000000 0.001899 2.868132 0.006279 0.007868 0.000000 0.001899 2.967033 0.006279 0.008126 0.000000 0.001899 3.065934 0.006279 0.008383 0.000000 0.001899 3.164835 0.006279 0.008641 0.000000 0.001899 3.263736 0.006279 0.008899 0.000000 0.001899 3.362637 0.006279 0.009157 0.000000 0.001899 3.461538 0.006279 0.009414 0.000000 0.001899 3.560440 0.006279 0.009672 0.000000 0.001899 3.659341 0.006279 0.009930 0.000000 0.001899 3.758242 0.006279 0.010187 0.000000 0.001899 3.857143 0.006279 0.010445 0.000000 0.001899 3.956044 0.006279 0.010703 0.000000 0.001899 4.054945 0.006279 0.010961 0.000000 0.001899 4.153846 0.006279 0.011218 0.000000 0.001899 4.252747 0.006279 0.011476 0.000000 0.001899 4.351648 0.006279 0.011734 0.000000 0.001899 4.450549 0.006279 0.011991 0.000000 0.001899 4.549451 0.006279 0.012249 0.000000 0.001899 4.648352 0.006279 0.012507 0.000000 0.001899 4.747253 0.006279 0.012765 0.000000 0.001899 4.846154 0.006279 0.013022 0.000000 0.001899 4.945055 0.006279 0.013280 0.000000 0.001899 5.043956 0.006279 0.013538 0.000000 0.001899 5.142857 0.006279 0.013796 0.000000 0.001899 5.241758 0.006279 0.014053 0.000000 0.001899 5.340659 0.006279 0.014311 0.000000 0.001899 5.439560 0.006279 0.014569 0.000000 0.001899 5.538462 0.006279 0.014826 0.000000 0.001899 5.637363 0.006279 0.015084 0.000000 0.001899 5.736264 0.006279 0.015342 0.000000 0.001899 5.835165 0.006279 0.015600 0.000000 0.001899 5.934066 0.006279 0.015857 0.000000 0.001899 6.032967 0.006279 0.016115 0.000000 0.001899 6.131868 0.006279 0.016373 0.000000 0.001899 6.230769 0.006279 0.016630 0.000000 0.001899 6.329670 0.006279 0.016888 0.000000 0.001899 6.428571 0.006279 0.017146 0.000000 0.001899 6.527473 0.006279 0.017404 0.029758 0.001899 6.626374 0.006279 0.017661 0.029758 0.001899 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 80 6.725275 0.006279 0.017919 0.029758 0.001899 6.824176 0.006279 0.018177 0.029758 0.001899 6.923077 0.006279 0.018435 0.029758 0.001899 7.000000 0.006279 0.019289 0.029758 0.001899 END FTABLE 9 FTABLE 8 22 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.006279 0.000000 0.000000 0.000000 0.098901 0.006279 0.000621 0.000000 0.018994 0.197802 0.006279 0.001242 0.000000 0.021499 0.296703 0.006279 0.001863 0.000000 0.022752 0.395604 0.006279 0.002484 0.000000 0.024004 0.494505 0.006279 0.003105 0.000000 0.025256 0.593407 0.006279 0.003726 0.000000 0.026509 0.692308 0.006279 0.004347 0.000000 0.027761 0.791209 0.006279 0.004968 0.000000 0.029014 0.890110 0.006279 0.005589 0.000000 0.030266 0.989011 0.006279 0.006210 0.000000 0.031518 1.087912 0.006279 0.006831 0.552618 0.031657 1.186813 0.006279 0.007452 1.704888 0.031657 1.285714 0.006279 0.008073 3.187839 0.031657 1.384615 0.006279 0.008694 4.864869 0.031657 1.483516 0.006279 0.009315 6.601841 0.031657 1.582418 0.006279 0.009936 8.262573 0.031657 1.681319 0.006279 0.010557 9.722741 0.031657 1.780220 0.006279 0.011178 10.89241 0.031657 1.879121 0.006279 0.011799 11.74434 0.031657 1.978022 0.006279 0.012420 12.34684 0.031657 2.000000 0.006279 0.012558 13.07410 0.031657 END FTABLE 8 FTABLE 11 72 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.007409 0.000000 0.000000 0.000000 0.098901 0.007409 0.000335 0.000000 0.000000 0.197802 0.007409 0.000670 0.000000 0.000000 0.296703 0.007409 0.001005 0.000000 0.000061 0.395604 0.007409 0.001340 0.000000 0.000215 0.494505 0.007409 0.001675 0.000000 0.000337 0.593407 0.007409 0.002010 0.000000 0.000496 0.692308 0.007409 0.002346 0.000000 0.000694 0.791209 0.007409 0.002681 0.000000 0.000936 0.890110 0.007409 0.003016 0.000000 0.001224 0.989011 0.007409 0.003351 0.000000 0.001562 1.087912 0.007409 0.003686 0.000000 0.001951 1.186813 0.007409 0.004021 0.000000 0.002241 1.285714 0.007409 0.004356 0.000000 0.002241 1.384615 0.007409 0.004691 0.000000 0.002241 1.483516 0.007409 0.005026 0.000000 0.002241 1.582418 0.007409 0.005330 0.000000 0.002241 1.681319 0.007409 0.005634 0.000000 0.002241 1.780220 0.007409 0.005938 0.000000 0.002241 1.879121 0.007409 0.006242 0.000000 0.002241 1.978022 0.007409 0.006547 0.000000 0.002241 2.076923 0.007409 0.006851 0.000000 0.002241 2.175824 0.007409 0.007155 0.000000 0.002241 2.274725 0.007409 0.007459 0.000000 0.002241 2.373626 0.007409 0.007763 0.000000 0.002241 2.472527 0.007409 0.008067 0.000000 0.002241 2.571429 0.007409 0.008371 0.000000 0.002241 2.670330 0.007409 0.008675 0.000000 0.002241 2.769231 0.007409 0.008979 0.000000 0.002241 2.868132 0.007409 0.009283 0.000000 0.002241 2.967033 0.007409 0.009587 0.000000 0.002241 3.065934 0.007409 0.009891 0.000000 0.002241 3.164835 0.007409 0.010195 0.000000 0.002241 3.263736 0.007409 0.010500 0.000000 0.002241 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 81 3.362637 0.007409 0.010804 0.000000 0.002241 3.461538 0.007409 0.011108 0.000000 0.002241 3.560440 0.007409 0.011412 0.000000 0.002241 3.659341 0.007409 0.011716 0.000000 0.002241 3.758242 0.007409 0.012020 0.000000 0.002241 3.857143 0.007409 0.012324 0.000000 0.002241 3.956044 0.007409 0.012628 0.000000 0.002241 4.054945 0.007409 0.012932 0.000000 0.002241 4.153846 0.007409 0.013236 0.000000 0.002241 4.252747 0.007409 0.013540 0.000000 0.002241 4.351648 0.007409 0.013844 0.000000 0.002241 4.450549 0.007409 0.014148 0.000000 0.002241 4.549451 0.007409 0.014453 0.000000 0.002241 4.648352 0.007409 0.014757 0.000000 0.002241 4.747253 0.007409 0.015061 0.000000 0.002241 4.846154 0.007409 0.015365 0.035111 0.002241 4.945055 0.007409 0.015669 0.035111 0.002241 5.043956 0.007409 0.015973 0.035111 0.002241 5.142857 0.007409 0.016277 0.035111 0.002241 5.241758 0.007409 0.016581 0.035111 0.002241 5.340659 0.007409 0.016885 0.035111 0.002241 5.439560 0.007409 0.017189 0.035111 0.002241 5.538462 0.007409 0.017493 0.035111 0.002241 5.637363 0.007409 0.017797 0.035111 0.002241 5.736264 0.007409 0.018102 0.035111 0.002241 5.835165 0.007409 0.018406 0.035111 0.002241 5.934066 0.007409 0.018710 0.035111 0.002241 6.032967 0.007409 0.019014 0.035111 0.002241 6.131868 0.007409 0.019318 0.035111 0.002241 6.230769 0.007409 0.019622 0.035111 0.002241 6.329670 0.007409 0.019926 0.035111 0.002241 6.428571 0.007409 0.020230 0.035111 0.002241 6.527473 0.007409 0.020534 0.035111 0.002241 6.626374 0.007409 0.020838 0.035111 0.002241 6.725275 0.007409 0.021142 0.035111 0.002241 6.824176 0.007409 0.021446 0.035111 0.002241 6.923077 0.007409 0.021750 0.035111 0.002241 7.000000 0.007409 0.022759 0.035111 0.002241 END FTABLE 11 FTABLE 10 22 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.007409 0.000000 0.000000 0.000000 0.098901 0.007409 0.000733 0.000000 0.022411 0.197802 0.007409 0.001465 0.000000 0.025366 0.296703 0.007409 0.002198 0.000000 0.026844 0.395604 0.007409 0.002931 0.000000 0.028322 0.494505 0.007409 0.003664 0.000000 0.029799 0.593407 0.007409 0.004396 0.000000 0.031277 0.692308 0.007409 0.005129 0.000000 0.032755 0.791209 0.007409 0.005862 0.000000 0.034232 0.890110 0.007409 0.006594 0.000000 0.035710 0.989011 0.007409 0.007327 0.000000 0.037188 1.087912 0.007409 0.008060 0.552618 0.037352 1.186813 0.007409 0.008793 1.704888 0.037352 1.285714 0.007409 0.009525 3.187839 0.037352 1.384615 0.007409 0.010258 4.864869 0.037352 1.483516 0.007409 0.010991 6.601841 0.037352 1.582418 0.007409 0.011724 8.262573 0.037352 1.681319 0.007409 0.012456 9.722741 0.037352 1.780220 0.007409 0.013189 10.89241 0.037352 1.879121 0.007409 0.013922 11.74434 0.037352 1.978022 0.007409 0.014654 12.34684 0.037352 2.000000 0.007409 0.014817 13.07410 0.037352 END FTABLE 10 FTABLE 5 92 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 82 0.000000 0.013085 0.000000 0.000000 0.000000 0.033333 0.013085 0.000174 0.000000 0.003958 0.066667 0.013085 0.000349 0.000000 0.003958 0.100000 0.013085 0.000523 0.000000 0.003958 0.133333 0.013085 0.000698 0.000000 0.003958 0.166667 0.013085 0.000872 0.000000 0.003958 0.200000 0.013085 0.001047 0.000000 0.003958 0.233333 0.013085 0.001221 0.000000 0.003958 0.266667 0.013085 0.001396 0.000000 0.003958 0.300000 0.013085 0.001570 0.000000 0.003958 0.333333 0.013085 0.001745 0.000000 0.003958 0.366667 0.013085 0.001919 0.000000 0.003958 0.400000 0.013085 0.002094 0.000000 0.003958 0.433333 0.013085 0.002268 0.000000 0.003958 0.466667 0.013085 0.002443 0.000000 0.003958 0.500000 0.013085 0.002617 0.000000 0.003958 0.533333 0.013085 0.002792 0.000000 0.003958 0.566667 0.013085 0.002966 0.000000 0.003958 0.600000 0.013085 0.003140 0.000000 0.003958 0.633333 0.013085 0.003315 0.000000 0.003958 0.666667 0.013085 0.003489 0.000000 0.003958 0.700000 0.013085 0.003664 0.000000 0.003958 0.733333 0.013085 0.003838 0.000000 0.003958 0.766667 0.013085 0.004013 0.000000 0.003958 0.800000 0.013085 0.004187 0.000000 0.003958 0.833333 0.013085 0.004362 0.000000 0.003958 0.866667 0.013085 0.004536 0.000000 0.003958 0.900000 0.013085 0.004711 0.000000 0.003958 0.933333 0.013085 0.004885 0.000000 0.003958 0.966667 0.013085 0.005060 0.000000 0.003958 1.000000 0.013085 0.005234 0.000000 0.003958 1.033333 0.013085 0.005409 0.000000 0.003958 1.066667 0.013085 0.005583 0.000000 0.003958 1.100000 0.013085 0.005758 0.000000 0.003958 1.133333 0.013085 0.005932 0.000000 0.003958 1.166667 0.013085 0.006107 0.000000 0.003958 1.200000 0.013085 0.006281 0.000000 0.003958 1.233333 0.013085 0.006455 0.000000 0.003958 1.266667 0.013085 0.006630 0.000000 0.003958 1.300000 0.013085 0.006804 0.000000 0.003958 1.333333 0.013085 0.006979 0.000000 0.003958 1.366667 0.013085 0.007153 0.000000 0.003958 1.400000 0.013085 0.007328 0.000000 0.003958 1.433333 0.013085 0.007502 0.000000 0.003958 1.466667 0.013085 0.007677 0.000000 0.003958 1.500000 0.013085 0.007851 0.000000 0.003958 1.533333 0.013085 0.008026 0.178361 0.003958 1.566667 0.013085 0.008200 0.252241 0.003958 1.600000 0.013085 0.008375 0.308931 0.003958 1.633333 0.013085 0.008549 0.356723 0.003958 1.666667 0.013085 0.008724 0.398828 0.003958 1.700000 0.013085 0.008898 0.436894 0.003958 1.733333 0.013085 0.009073 0.471900 0.003958 1.766667 0.013085 0.009247 0.504482 0.003958 1.800000 0.013085 0.009421 0.535084 0.003958 1.833333 0.013085 0.009596 0.564028 0.003958 1.866667 0.013085 0.009770 0.591557 0.003958 1.900000 0.013085 0.009945 0.617862 0.003958 1.933333 0.013085 0.010119 0.643091 0.003958 1.966667 0.013085 0.010294 0.667367 0.003958 2.000000 0.013085 0.010730 0.690790 0.003958 2.033333 0.013085 0.011166 0.842613 0.003958 2.066667 0.013085 0.011602 1.100496 0.003958 2.100000 0.013085 0.012039 1.426964 0.003958 2.133333 0.013085 0.012475 1.808330 0.003958 2.166667 0.013085 0.012911 2.236148 0.003958 2.200000 0.013085 0.013347 2.704031 0.003958 2.233333 0.013085 0.013783 3.206504 0.003958 2.266667 0.013085 0.014219 3.738476 0.003958 2.300000 0.013085 0.014656 4.294976 0.003958 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 83 2.333333 0.013085 0.015092 4.871018 0.003958 2.366667 0.013085 0.015528 5.461539 0.003958 2.400000 0.013085 0.015964 6.061384 0.003958 2.433333 0.013085 0.016400 6.665325 0.003958 2.466667 0.013085 0.016837 7.268097 0.003958 2.500000 0.013085 0.017273 7.864457 0.003958 2.533333 0.013085 0.017709 8.449259 0.003958 2.566667 0.013085 0.018145 9.017538 0.003958 2.600000 0.013085 0.018581 9.564602 0.003958 2.633333 0.013085 0.019017 10.08614 0.003958 2.666667 0.013085 0.019454 10.57833 0.003958 2.700000 0.013085 0.019890 11.03798 0.003958 2.733333 0.013085 0.020326 11.46261 0.003958 2.766667 0.013085 0.020762 11.85064 0.003958 2.800000 0.013085 0.021198 12.20150 0.003958 2.833333 0.013085 0.021635 12.51578 0.003958 2.866667 0.013085 0.022071 12.79539 0.003958 2.900000 0.013085 0.022507 13.04372 0.003958 2.933333 0.013085 0.022943 13.26579 0.003958 2.966667 0.013085 0.023379 13.46842 0.003958 3.000000 0.013085 0.023815 13.66043 0.003958 3.033333 0.013085 0.024252 14.01648 0.003958 END FTABLE 5 FTABLE 13 72 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.008775 0.000000 0.000000 0.000000 0.098901 0.008775 0.000397 0.000000 0.000000 0.197802 0.008775 0.000794 0.000000 0.000000 0.296703 0.008775 0.001191 0.000000 0.000072 0.395604 0.008775 0.001587 0.000000 0.000255 0.494505 0.008775 0.001984 0.000000 0.000399 0.593407 0.008775 0.002381 0.000000 0.000587 0.692308 0.008775 0.002778 0.000000 0.000822 0.791209 0.008775 0.003175 0.000000 0.001109 0.890110 0.008775 0.003572 0.000000 0.001450 0.989011 0.008775 0.003969 0.000000 0.001850 1.087912 0.008775 0.004366 0.000000 0.002311 1.186813 0.008775 0.004762 0.000000 0.002654 1.285714 0.008775 0.005159 0.000000 0.002654 1.384615 0.008775 0.005556 0.000000 0.002654 1.483516 0.008775 0.005953 0.000000 0.002654 1.582418 0.008775 0.006313 0.000000 0.002654 1.681319 0.008775 0.006673 0.000000 0.002654 1.780220 0.008775 0.007034 0.000000 0.002654 1.879121 0.008775 0.007394 0.000000 0.002654 1.978022 0.008775 0.007754 0.000000 0.002654 2.076923 0.008775 0.008114 0.000000 0.002654 2.175824 0.008775 0.008474 0.000000 0.002654 2.274725 0.008775 0.008834 0.000000 0.002654 2.373626 0.008775 0.009195 0.000000 0.002654 2.472527 0.008775 0.009555 0.000000 0.002654 2.571429 0.008775 0.009915 0.000000 0.002654 2.670330 0.008775 0.010275 0.000000 0.002654 2.769231 0.008775 0.010635 0.000000 0.002654 2.868132 0.008775 0.010995 0.000000 0.002654 2.967033 0.008775 0.011356 0.000000 0.002654 3.065934 0.008775 0.011716 0.000000 0.002654 3.164835 0.008775 0.012076 0.000000 0.002654 3.263736 0.008775 0.012436 0.000000 0.002654 3.362637 0.008775 0.012796 0.000000 0.002654 3.461538 0.008775 0.013156 0.000000 0.002654 3.560440 0.008775 0.013516 0.000000 0.002654 3.659341 0.008775 0.013877 0.000000 0.002654 3.758242 0.008775 0.014237 0.000000 0.002654 3.857143 0.008775 0.014597 0.000000 0.002654 3.956044 0.008775 0.014957 0.000000 0.002654 4.054945 0.008775 0.015317 0.000000 0.002654 4.153846 0.008775 0.015677 0.000000 0.002654 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 84 4.252747 0.008775 0.016038 0.000000 0.002654 4.351648 0.008775 0.016398 0.000000 0.002654 4.450549 0.008775 0.016758 0.000000 0.002654 4.549451 0.008775 0.017118 0.000000 0.002654 4.648352 0.008775 0.017478 0.000000 0.002654 4.747253 0.008775 0.017838 0.000000 0.002654 4.846154 0.008775 0.018199 0.000000 0.002654 4.945055 0.008775 0.018559 0.000000 0.002654 5.043956 0.008775 0.018919 0.000000 0.002654 5.142857 0.008775 0.019279 0.000000 0.002654 5.241758 0.008775 0.019639 0.000000 0.002654 5.340659 0.008775 0.019999 0.000000 0.002654 5.439560 0.008775 0.020360 0.041586 0.002654 5.538462 0.008775 0.020720 0.041586 0.002654 5.637363 0.008775 0.021080 0.041586 0.002654 5.736264 0.008775 0.021440 0.041586 0.002654 5.835165 0.008775 0.021800 0.041586 0.002654 5.934066 0.008775 0.022160 0.041586 0.002654 6.032967 0.008775 0.022521 0.041586 0.002654 6.131868 0.008775 0.022881 0.041586 0.002654 6.230769 0.008775 0.023241 0.041586 0.002654 6.329670 0.008775 0.023601 0.041586 0.002654 6.428571 0.008775 0.023961 0.041586 0.002654 6.527473 0.008775 0.024321 0.041586 0.002654 6.626374 0.008775 0.024681 0.041586 0.002654 6.725275 0.008775 0.025042 0.041586 0.002654 6.824176 0.008775 0.025402 0.041586 0.002654 6.923077 0.008775 0.025762 0.041586 0.002654 7.000000 0.008775 0.026956 0.041586 0.002654 END FTABLE 13 FTABLE 12 22 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.008775 0.000000 0.000000 0.000000 0.098901 0.008775 0.000868 0.000000 0.026544 0.197802 0.008775 0.001736 0.000000 0.030045 0.296703 0.008775 0.002604 0.000000 0.031795 0.395604 0.008775 0.003471 0.000000 0.033545 0.494505 0.008775 0.004339 0.000000 0.035295 0.593407 0.008775 0.005207 0.000000 0.037046 0.692308 0.008775 0.006075 0.000000 0.038796 0.791209 0.008775 0.006943 0.000000 0.040546 0.890110 0.008775 0.007811 0.000000 0.042296 0.989011 0.008775 0.008679 0.000000 0.044046 1.087912 0.008775 0.009546 0.552618 0.044241 1.186813 0.008775 0.010414 1.704888 0.044241 1.285714 0.008775 0.011282 3.187839 0.044241 1.384615 0.008775 0.012150 4.864869 0.044241 1.483516 0.008775 0.013018 6.601841 0.044241 1.582418 0.008775 0.013886 8.262573 0.044241 1.681319 0.008775 0.014754 9.722741 0.044241 1.780220 0.008775 0.015621 10.89241 0.044241 1.879121 0.008775 0.016489 11.74434 0.044241 1.978022 0.008775 0.017357 12.34684 0.044241 2.000000 0.008775 0.017550 13.07410 0.044241 END FTABLE 12 FTABLE 15 72 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.029529 0.000000 0.000000 0.000000 0.098901 0.029529 0.001336 0.000000 0.000000 0.197802 0.029529 0.002671 0.000000 0.000000 0.296703 0.029529 0.004007 0.000000 0.000243 0.395604 0.029529 0.005342 0.000000 0.000857 0.494505 0.029529 0.006678 0.000000 0.001344 0.593407 0.029529 0.008013 0.000000 0.001976 0.692308 0.029529 0.009349 0.000000 0.002767 0.791209 0.029529 0.010684 0.000000 0.003731 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 85 0.890110 0.029529 0.012020 0.000000 0.004880 0.989011 0.029529 0.013355 0.000000 0.006224 1.087912 0.029529 0.014691 0.000000 0.007775 1.186813 0.029529 0.016026 0.000000 0.008933 1.285714 0.029529 0.017362 0.000000 0.008933 1.384615 0.029529 0.018697 0.000000 0.008933 1.483516 0.029529 0.020033 0.000000 0.008933 1.582418 0.029529 0.021245 0.000000 0.008933 1.681319 0.029529 0.022457 0.000000 0.008933 1.780220 0.029529 0.023669 0.000000 0.008933 1.879121 0.029529 0.024881 0.000000 0.008933 1.978022 0.029529 0.026093 0.000000 0.008933 2.076923 0.029529 0.027305 0.000000 0.008933 2.175824 0.029529 0.028517 0.000000 0.008933 2.274725 0.029529 0.029729 0.000000 0.008933 2.373626 0.029529 0.030941 0.000000 0.008933 2.472527 0.029529 0.032153 0.000000 0.008933 2.571429 0.029529 0.033365 0.000000 0.008933 2.670330 0.029529 0.034577 0.000000 0.008933 2.769231 0.029529 0.035789 0.000000 0.008933 2.868132 0.029529 0.037001 0.000000 0.008933 2.967033 0.029529 0.038213 0.000000 0.008933 3.065934 0.029529 0.039425 0.000000 0.008933 3.164835 0.029529 0.040637 0.000000 0.008933 3.263736 0.029529 0.041848 0.000000 0.008933 3.362637 0.029529 0.043060 0.000000 0.008933 3.461538 0.029529 0.044272 0.000000 0.008933 3.560440 0.029529 0.045484 0.000000 0.008933 3.659341 0.029529 0.046696 0.000000 0.008933 3.758242 0.029529 0.047908 0.000000 0.008933 3.857143 0.029529 0.049120 0.000000 0.008933 3.956044 0.029529 0.050332 0.000000 0.008933 4.054945 0.029529 0.051544 0.000000 0.008933 4.153846 0.029529 0.052756 0.000000 0.008933 4.252747 0.029529 0.053968 0.000000 0.008933 4.351648 0.029529 0.055180 0.000000 0.008933 4.450549 0.029529 0.056392 0.000000 0.008933 4.549451 0.029529 0.057604 0.000000 0.008933 4.648352 0.029529 0.058816 0.000000 0.008933 4.747253 0.029529 0.060028 0.000000 0.008933 4.846154 0.029529 0.061240 0.000000 0.008933 4.945055 0.029529 0.062452 0.000000 0.008933 5.043956 0.029529 0.063664 0.000000 0.008933 5.142857 0.029529 0.064876 0.000000 0.008933 5.241758 0.029529 0.066088 0.000000 0.008933 5.340659 0.029529 0.067300 0.000000 0.008933 5.439560 0.029529 0.068512 0.000000 0.008933 5.538462 0.029529 0.069724 0.000000 0.008933 5.637363 0.029529 0.070936 0.000000 0.008933 5.736264 0.029529 0.072148 0.000000 0.008933 5.835165 0.029529 0.073360 0.000000 0.008933 5.934066 0.029529 0.074572 0.000000 0.008933 6.032967 0.029529 0.075784 0.000000 0.008933 6.131868 0.029529 0.076996 0.000000 0.008933 6.230769 0.029529 0.078208 0.000000 0.008933 6.329670 0.029529 0.079420 0.000000 0.008933 6.428571 0.029529 0.080632 0.000000 0.008933 6.527473 0.029529 0.081844 0.139943 0.008933 6.626374 0.029529 0.083056 0.139943 0.008933 6.725275 0.029529 0.084268 0.139943 0.008933 6.824176 0.029529 0.085480 0.139943 0.008933 6.923077 0.029529 0.086692 0.139943 0.008933 7.000000 0.029529 0.090710 0.139943 0.008933 END FTABLE 15 FTABLE 14 22 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.029529 0.000000 0.000000 0.000000 0.098901 0.029529 0.002920 0.000000 0.089325 DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 86 0.197802 0.029529 0.005841 0.000000 0.101104 0.296703 0.029529 0.008761 0.000000 0.106994 0.395604 0.029529 0.011682 0.000000 0.112883 0.494505 0.029529 0.014602 0.000000 0.118773 0.593407 0.029529 0.017523 0.000000 0.124662 0.692308 0.029529 0.020443 0.000000 0.130552 0.791209 0.029529 0.023364 0.000000 0.136442 0.890110 0.029529 0.026284 0.000000 0.142331 0.989011 0.029529 0.029204 0.000000 0.148221 1.087912 0.029529 0.032125 0.552618 0.148875 1.186813 0.029529 0.035045 1.704888 0.148875 1.285714 0.029529 0.037966 3.187839 0.148875 1.384615 0.029529 0.040886 4.864869 0.148875 1.483516 0.029529 0.043807 6.601841 0.148875 1.582418 0.029529 0.046727 8.262573 0.148875 1.681319 0.029529 0.049648 9.722741 0.148875 1.780220 0.029529 0.052568 10.89241 0.148875 1.879121 0.029529 0.055488 11.74434 0.148875 1.978022 0.029529 0.058409 12.34684 0.148875 2.000000 0.029529 0.059058 13.07410 0.148875 END FTABLE 14 END FTABLES EXT SOURCES <-Volume-> <Member> SsysSgap<--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # tem strg<-factor->strg <Name> # # <Name> # # *** WDM 2 PREC ENGL 0.8 PERLND 1 999 EXTNL PREC WDM 2 PREC ENGL 0.8 IMPLND 1 999 EXTNL PREC WDM 1 EVAP ENGL 0.76 PERLND 1 999 EXTNL PETINP WDM 1 EVAP ENGL 0.76 IMPLND 1 999 EXTNL PETINP WDM 2 PREC ENGL 0.8 RCHRES 1 EXTNL PREC WDM 2 PREC ENGL 0.8 RCHRES 3 EXTNL PREC WDM 2 PREC ENGL 0.8 RCHRES 6 EXTNL PREC WDM 2 PREC ENGL 0.8 RCHRES 8 EXTNL PREC WDM 2 PREC ENGL 0.8 RCHRES 10 EXTNL PREC WDM 2 PREC ENGL 0.8 RCHRES 12 EXTNL PREC WDM 2 PREC ENGL 0.8 RCHRES 14 EXTNL PREC WDM 1 EVAP ENGL 0.5 RCHRES 1 EXTNL POTEV WDM 1 EVAP ENGL 0.76 RCHRES 2 EXTNL POTEV WDM 1 EVAP ENGL 0.5 RCHRES 3 EXTNL POTEV WDM 1 EVAP ENGL 0.76 RCHRES 4 EXTNL POTEV WDM 1 EVAP ENGL 0.5 RCHRES 6 EXTNL POTEV WDM 1 EVAP ENGL 0.76 RCHRES 7 EXTNL POTEV WDM 1 EVAP ENGL 0.5 RCHRES 8 EXTNL POTEV WDM 1 EVAP ENGL 0.76 RCHRES 9 EXTNL POTEV WDM 1 EVAP ENGL 0.5 RCHRES 10 EXTNL POTEV WDM 1 EVAP ENGL 0.76 RCHRES 11 EXTNL POTEV WDM 1 EVAP ENGL 0.5 RCHRES 12 EXTNL POTEV WDM 1 EVAP ENGL 0.76 RCHRES 13 EXTNL POTEV WDM 1 EVAP ENGL 0.5 RCHRES 14 EXTNL POTEV WDM 1 EVAP ENGL 0.76 RCHRES 15 EXTNL POTEV END EXT SOURCES EXT TARGETS <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Volume-> <Member> Tsys Tgap Amd *** <Name> # <Name> # #<-factor->strg <Name> # <Name> tem strg strg*** RCHRES 15 HYDR RO 1 1 1 WDM 1000 FLOW ENGL REPL RCHRES 15 HYDR O 1 1 1 WDM 1001 FLOW ENGL REPL RCHRES 15 HYDR O 2 1 1 WDM 1002 FLOW ENGL REPL RCHRES 15 HYDR STAGE 1 1 1 WDM 1003 STAG ENGL REPL RCHRES 14 HYDR STAGE 1 1 1 WDM 1004 STAG ENGL REPL RCHRES 14 HYDR O 1 1 1 WDM 1005 FLOW ENGL REPL COPY 1 OUTPUT MEAN 1 1 48.4 WDM 701 FLOW ENGL REPL COPY 501 OUTPUT MEAN 1 1 48.4 WDM 801 FLOW ENGL REPL END EXT TARGETS MASS-LINK <Volume> <-Grp> <-Member-><--Mult--> <Target> <-Grp> <-Member->*** <Name> <Name> # #<-factor-> <Name> <Name> # #*** DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 87 MASS-LINK 2 PERLND PWATER SURO 0.083333 RCHRES INFLOW IVOL END MASS-LINK 2 MASS-LINK 3 PERLND PWATER IFWO 0.083333 RCHRES INFLOW IVOL END MASS-LINK 3 MASS-LINK 5 IMPLND IWATER SURO 0.083333 RCHRES INFLOW IVOL END MASS-LINK 5 MASS-LINK 7 RCHRES OFLOW OVOL 1 RCHRES INFLOW IVOL END MASS-LINK 7 MASS-LINK 8 RCHRES OFLOW OVOL 2 RCHRES INFLOW IVOL END MASS-LINK 8 MASS-LINK 15 IMPLND IWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 15 MASS-LINK 17 RCHRES OFLOW OVOL 1 COPY INPUT MEAN END MASS-LINK 17 END MASS-LINK END RUN DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 88 Predeveloped HSPF Message File DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 89 Mitigated HSPF Message File DRAFTWWHM_Road_disconnectedTrench_10122023 11/21/2023 1:47:01 PM Page 90 Disclaimer Legal Notice This program and accompanying documentation are provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by End User. Clear Creek Solutions Inc. and the governmental licensee or sublicensees disclaim all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions Inc. or their authorized representatives have been advised of the possibility of such damages. Software Copyright © by : Clear Creek Solutions, Inc. 2005-2023; All Rights Reserved. Clear Creek Solutions, Inc. 6200 Capitol Blvd. Ste F Olympia, WA. 98501 Toll Free 1(866)943-0304 Local (360)943-0304 www.clearcreeksolutions.com Appendix F: Culvert Sizing Memorandum 2828 Colby Avenue, Suite 401 | Everett, WA 98201 | Phone 425.493.5221 | otak.com k:\project\33400\33425\projectdocs\reports\wnr drainage report\culvert sizing memo and attachments\culvert sizing memorandum.docx Memorandum To: file From: David Ojala, PE Copies: Date: August 30, 2023 Subject: Olympic Discovery Trail Culvert Sizing Project No.: 33425 Background The purpose of this project is to provide a new segment of the multi-use Olympic Discovery Trail. The project is proposed by Jefferson County Public Works. The pedestrian trail starts at the south end of Larry Scott Trail at Milo Curry Road and runs east along 4 Corners Road/ Discovery Road for 0.5 miles, then runs south adjacent to an existing utility corridor parallel to Highway 20 for approximately 2 miles, then runs east parallel to Anderson Lake Road for approximately 0.4 miles, ending at Anderson Lake State Park. The equestrian trail is mostly adjacent to the pedestrian trail but starts where the proposed pedestrian trail crosses Four Corners Road approximately 0.5 miles from the start of the proposed pedestrian trail, then runs south parallel to Highway 20 adjacent to an existing utility corridor for approximately 1.5 miles to join an existing equestrian trail. Within the project limits, there are a total of six (6) existing access road culvert crossings. The 6 culverts are crossing under the dirt road within the utility corridor parallel to Highway 20 convey stormwater runoff and are not typed as fish bearing streams. Proposed Culvert Crossings The proposed maximum trail profile grade is 5%. To achieve this proposed grade within the existing undulating and steep terrain significant proposed grading will occur. There are 18 culverts proposed within the trail alignment. These are located at existing topographic lows, where warranted based on proposed grading, and at locations where existing culvert crossings will be replaced or existing drainage maintained. The culverts are shown in Figures 1 and 2 and are identified using their drainage basin. Seventeen of the culverts are trail crossings (two within WSDOT right of way at SR20, and one is a driveway crossing. The figures also show three storm drainage pipes collecting local drainage between station 120+00 to 130+00. The following sections document the methodology used to size the culvert crossings. Page 2 of 9 Olympic Discovery Trail Culvert Sizing August 30, 2023 K:\Project\33400\33425\ProjectDocs\Reports\WNR Drainage Report\Culvert Sizing Memo and Attachments\Culvert Sizing Memorandum.docx Figure 1: Proposed Culvert Locations - South Page 3 of 9 Olympic Discovery Trail Culvert Sizing August 30, 2023 K:\Project\33400\33425\ProjectDocs\Reports\WNR Drainage Report\Culvert Sizing Memo and Attachments\Culvert Sizing Memorandum.docx Figure 2: Proposed Culvert Locations - North Page 4 of 9 Olympic Discovery Trail Culvert Sizing August 30, 2023 K:\Project\33400\33425\ProjectDocs\Reports\WNR Drainage Report\Culvert Sizing Memo and Attachments\Culvert Sizing Memorandum.docx Design Criteria The culvert crossings were designed with a conveyance capacity to meet a headwater to diameter ratio (HW/D) less than 1.25 for the 25-year flow event per the Washington State Department of Transportation (WSDOT) Hydraulics Manual Section 3-3.2.2. Hydrologic analysis was performed using the Western Washington Hydrology Model (WWHM) 2012 except for the two culverts in WSDOT right-of-way which used the rational method. The FHWA culvert analysis program, HY-8 v 7.80.0.2, was used to analyze the hydraulic capacity of the culverts. Hydrologic Analysis WWHM For most of the trail crossings, WWHM was used to run a Log Pearson Bulletin 17b flow frequency analysis and determine the 25-year flow event for design. In WWHM, data from the Port Angeles precipitation gage was selected, establishing a precipitation factor of 0.8 for the analysis. To collect hydrologic input values, subbasins were delineated and combined with soil group, slope, and land cover data in ArcGIS Pro. Subbasin sizes and extents were determined with a watershed delineation using a 3-foot resolution digital terrain model (DTM) of the landscape (DNR, 2019). The same DTM was resampled to a 30-meter resolution, then used to calculate and classify the slopes within each subbasin as flat (0 - 5%), moderate (5 - 15%), and steep (>15%) for input in WWHM. The soil group spatial data used in WWHM was sourced from the US Department of Agriculture Web Soil Survey database (NRCS, 2023). Land cover spatial data was sourced from 2011 NOAA C-CAP Regional Land Cover Database (NOAA, 2011), then spot-checked and updated using aerial imagery. Figure 3 shows a map of soil groups, land cover, and slope grouped and spatially distributed within each subbasin. Page 5 of 9 Olympic Discovery Trail Culvert Sizing August 30, 2023 K:\Project\33400\33425\ProjectDocs\Reports\WNR Drainage Report\Culvert Sizing Memo and Attachments\Culvert Sizing Memorandum.docx Figure 3: Hydrologic Inputs for WWHM Page 6 of 9 Olympic Discovery Trail Culvert Sizing August 30, 2023 K:\Project\33400\33425\ProjectDocs\Reports\WNR Drainage Report\Culvert Sizing Memo and Attachments\Culvert Sizing Memorandum.docx Rational Method For the two culvert crossings within WSDOT right of way (P and Q), the rational method was used to determine the 25-year flow event for design. Flow Results Attachment 1 contains the flow results for WWHM and the rational method. Hydraulic Analysis HY8 The FHWA culvert hydraulics model, HY8, was used to check the hydraulic capacity of each culvert crossing. The HY8 inputs - diameter, length, slope, overflow elevation and tailwater condition approximation - were taken from the 90% plans. The following Hydraulic Results table is a summary of the HY-8 analysis. Culvert names are shown on Figures 1 and 2. Attachment 2 contains the HY8 output. Hydraulic Results Table Culvert Name HW/D < 1.25 Culvert Diameter (ft) A 0.07 1.5 B 0.08 1.5 C 0.18 2.0 D 0.16 2.0 E 0.07 1.5 F 0.08 1.5 G 0.07 1.0 H 0.06 1.5 I 0.19 2.0 J 0.38 1.5 K 0.09 1.5 L 0.15 1.5 M 0.05 1.5 N 0.32 2.5 O 0.81 1.5 P 0.63 1.0 Q 0.21 1.0 R 0.65 1.0 Conclusion The Hydraulic Results table shows that all culverts meet the conveyance design criteria of HW/D less than 1.25. Page 7 of 9 Olympic Discovery Trail Culvert Sizing August 30, 2023 K:\Project\33400\33425\ProjectDocs\Reports\WNR Drainage Report\Culvert Sizing Memo and Attachments\Culvert Sizing Memorandum.docx References DNR (Washington State Department of Natural Resources). 2019. Olympics South OSPW 2019 DTM 137. Available at: https://lidarportal.dnr.wa.gov/ NOAA. 2011. 2011 NOAA C-CAP Regional Land Cover. 2011. NOAA. Available at: https://coast.noaa.gov/digitalcoast/data/ccapregional.html NRCS (National Resource Conservation District). 2023. Web Soil Survey. United States Department of Agriculture. Available at: https://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm. Page 8 of 9 Olympic Discovery Trail Culvert Sizing August 30, 2023 K:\Project\33400\33425\ProjectDocs\Reports\WNR Drainage Report\Culvert Sizing Memo and Attachments\Culvert Sizing Memorandum.docx Attachment 1 – WWHM and Rational Results 1 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.01 A/B Forest Flat 0.493 5 0.0243 A/B Forest Mod 0.210 10 0.0372 C Forest Flat 0.444 25 0.0568 C Forest Mod 1.201 50 0.0734 Sat Forest Flat 0.418 100 0.0916 Sat Pasture Flat 0.061 200 0.1142 2.828 500 0.1425 2 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.0112 A/B Forest Flat 0.420 5 0.0271 A/B Forest Mod 1.130 10 0.0413 C Forest Flat 0.750 25 0.0629 C Forest Mod 0.963 50 0.0811 C Pasture Flat 0.028 100 0.101 C Pasture Mod 0.066 200 0.1257 3.358 500 0.1565 3 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.1311 C Forest Flat 17.125 5 0.3216 C Forest Mod 1.779 10 0.4882 C Forest Steep 0.688 25 0.7337 C Pasture Flat 0.432 50 0.9358 C Pasture Mod 0.482 100 1.1499 C Pasture Steep 0.113 200 1.4129 Sat Forest Flat 0.155 500 1.7361 20.774 4 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.0943 C Forest Flat 7.816 5 0.23 C Forest Mod 5.387 10 0.3483 C Forest Steep 1.080 25 0.5222 C Lawn Flat 0.137 50 0.6652 C Lawn Mod 0.004 100 0.8163 C Pasture Mod 0.001 200 1.0018 14.425 500 1.2295 5 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.0079 C Forest Flat 0.140 5 0.0198 C Forest Mod 1.194 10 0.0307 C Lawn Mod 0.000 25 0.0475 1.334 50 0.0619 100 0.0778 200 0.0978 500 0.1228 6 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.012 C Forest Flat 1.117 5 0.0294 C Forest Mod 0.873 10 0.0447 1.990 25 0.0673 50 0.0859 100 0.1056 200 0.1298 500 0.1596 7 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.0055 C Forest Flat 0.611 5 0.0135 C Forest Mod 0.303 10 0.0205 0.915 25 0.0309 50 0.0394 100 0.0484 200 0.0595 500 0.0732 Basin F Basin G Basin A Basin B Basin C Basin D Basin E 8 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.0073 C Forest Flat 1.049 5 0.0178 C Forest Mod 0.160 10 0.0271 1.209 25 0.0407 50 0.0519 100 0.0638 200 0.0785 500 0.0964 9 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.1176 C Forest Flat 17.087 5 0.2886 C Forest Mod 2.401 10 0.4383 C Lawn Flat 0.001 25 0.659 C Pasture Flat 0.056 50 0.8407 19.546 100 1.0332 200 1.2698 500 1.5606 10 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.0018 C Forest Flat 0.211 5 0.0045 C Forest Mod 0.092 10 0.0068 0.303 25 0.0102 50 0.0131 100 0.016 200 0.0197 500 0.0242 11 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.0144 C Forest Flat 1.975 5 0.0353 C Forest Mod 0.415 10 0.0536 2.390 25 0.0805 50 0.1027 100 0.1263 200 0.1552 500 0.1908 12 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.0455 C Forest Flat 7.017 5 0.1118 C Forest Mod 0.319 10 0.1697 C Pasture Flat 0.171 25 0.2552 7.507 50 0.3255 100 0.4 200 0.4916 500 0.6041 13 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.0105 C Forest Flat 0.866 5 0.0258 C Forest Mod 0.875 10 0.0392 1.741 25 0.0589 50 0.0752 100 0.0925 200 0.1137 500 0.1398 14 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.607 C Forest Flat 74.507 5 1.4883 C Forest Mod 6.670 10 2.2583 C Forest Steep 0.883 25 3.3934 C Pasture Flat 8.562 50 4.3278 C Pasture Mod 3.376 100 5.3171 C Pasture Steep 0.213 200 6.5325 94.210 500 8.0258 Basin H Basin I Basin J Basin N Basin M Basin L Basin K 15 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 2.107 A/B Forest Flat 6.673 5 2.8866 A/B Forest Mod 5.944 10 3.415 A/B Forest Steep 6.515 25 4.0962 A/B Impervious Flat 4.598 50 4.6137 C Impervious Flat 2.453 7.051 100 5.1399 C Forest Flat 29.770 200 5.7261 C Forest Mod 4.921 500 6.3792 C Forest Steep 2.626 C Pasture Flat 0.021 63.522 56.471 16 Rational in WSDOT R/W Year Flow (cfs) Soil Group Land Cover Slope Acres 400 roadway length C = 0.25 Lawn Flat 0.335 Table 2-2 Hydraulics Man 25 1.02 30 roadway width C=0.90 roadway Flat 0.270 12000 sq ft 0.275482 acres TC 5 min 5 min minimum (conservative) m 7.37 Table 2-4 Hyd Man for 25 yr MRI n 0.532 Port Angeles I 3.130512524 inch/hr Eqn 2-7 Q road 0.76 cfs Eqn 2-3 Q lawn 0.26 cfs Eqn 2-3 Q tot 1.02 cfs Eqn 2-4 17 Rational in WSDOT R/W Year Flow (cfs) Soil Group Land Cover Slope Acres C = 0.25 Lawn Flat 0.027 25 0.58 300 roadway length C=0.90 roadway Flat 0.200 30 roadway width 9000 sq ft TC 5 min 5 min minimum (conservative) 0.206612 acres m 7.37 Table 2-4 Hyd Man for 25 yr MRI n 0.532 Port Angeles I 3.130512524 inch/hr Eqn 2-7 Q road 0.56 cfs Eqn 2-3 Q lawn 0.02 cfs Eqn 2-3 Q tot 0.58 cfs Eqn 2-4 18 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.6469 625 roadway length A/B Lawn Mod 0.008 5 0.8877 22 roadway width C Forest Flat 1.056 10 1.0547 13750 sq ft C Lawn Flat 1.550 25 1.2743 0.315657 acres C Lawn Mod 0.038 50 1.4443 C impervious mod 1.866 100 1.6197 3.1 lawn flat -development to north of roadway 4.517 200 1.8164 1.55 Assume development 50% effective impervious 500 2.0371 19 WWHM Flow Frequency Year Flow (cfs) Soil Group Land Cover Slope Acres 2 0.0851 C Forest Flat 4.886 5 0.2089 C Forest Mod 6.102 10 0.3173 C Forest Steep 0.020 25 0.4771 C Pasture Flat 0.391 50 0.6088 C Pasture Mod 1.579 100 0.7482 C Pasture Steep 0.048 200 0.9196 13.026 500 1.1303 Basin B to C Basin R Basin Q Basin P Basin O Attachment 2 - HY8 Model Output HY-8 Culvert Analysis Report Project Data Project Title: Olympic Discovery Trail Designer: David R. Ojala, PE Project Date: Friday, August 25, 2023 Culvert Data: Culvert A Table 1 - Culvert Summary Table: Culvert A Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.00 cfs 0.00 cfs 373.74 0.00 0.000 0-NF 0.00 0.00 0.00 0.00 0.00 0.00 0.01 cfs 0.01 cfs 373.80 0.06 0.0* 1- S2n 0.03 0.04 0.03 0.02 1.31 0.09 0.03 cfs 0.03 cfs 373.82 0.08 0.0* 1- S2n 0.05 0.06 0.05 0.02 1.64 0.11 0.04 cfs 0.04 cfs 373.84 0.10 0.0* 1- S2n 0.06 0.07 0.06 0.03 1.85 0.13 0.05 cfs 0.05 cfs 373.85 0.11 0.0* 1- S2n 0.06 0.08 0.06 0.03 1.93 0.14 0.07 cfs 0.07 cfs 373.87 0.13 0.0* 1- S2n 0.08 0.10 0.08 0.04 2.06 0.16 0.08 cfs 0.08 cfs 373.88 0.14 0.0* 1-0.08 0.11 0.08 0.05 2.20 0.17 S2n 0.10 cfs 0.10 cfs 373.89 0.15 0.0* 1- S2n 0.09 0.11 0.09 0.05 2.32 0.18 0.11 cfs 0.11 cfs 373.90 0.16 0.0* 1- S2n 0.09 0.12 0.09 0.06 2.42 0.19 0.13 cfs 0.13 cfs 373.91 0.17 0.0* 1- S2n 0.10 0.13 0.10 0.06 2.50 0.20 0.14 cfs 0.14 cfs 373.92 0.18 0.0* 1- S2n 0.10 0.14 0.10 0.06 2.57 0.21 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 373.74 ft, Outlet Elevation (invert): 373.29 ft Culvert Length: 30.00 ft, Culvert Slope: 0.0150 Culvert Data Summary - Culvert A Barrel Shape: Circular Barrel Diameter: 1.50 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert A Table 1 - Downstream Channel Rating Curve (Crossing: Culvert A) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.00 373.29 0.00 0.00 0.00 0.00 0.01 373.31 0.02 0.09 0.00 0.12 0.03 373.31 0.02 0.11 0.00 0.13 0.04 373.32 0.03 0.13 0.00 0.13 0.05 373.32 0.03 0.14 0.00 0.13 0.07 373.33 0.04 0.16 0.00 0.14 0.08 373.34 0.05 0.17 0.00 0.14 0.10 373.34 0.05 0.18 0.00 0.14 0.11 373.35 0.06 0.19 0.00 0.15 0.13 373.35 0.06 0.20 0.00 0.15 0.14 373.35 0.06 0.21 0.00 0.15 Tailwater Channel Data - Culvert A Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 373.29 ft Roadway Data for Crossing: Culvert A Roadway Profile Shape: Constant Roadway Elevation Crest Length: 20.00 ft Crest Elevation: 376.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert B Table 2 - Culvert Summary Table: Culvert B Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.01 cfs 0.01 cfs 357.98 0.05 0.0* 1- S2n 0.02 0.04 0.02 0.01 2.02 0.08 0.03 cfs 0.03 cfs 358.01 0.08 0.0* 1- S2n 0.04 0.06 0.04 0.02 2.05 0.11 0.04 cfs 0.04 cfs 358.03 0.10 0.0* 1- S2n 0.05 0.07 0.05 0.03 2.47 0.13 0.05 cfs 0.05 cfs 358.04 0.11 0.0* 1- S2n 0.05 0.09 0.05 0.04 2.73 0.15 0.06 cfs 0.06 cfs 358.05 0.12 0.0* 1-0.06 0.09 0.06 0.04 2.83 0.15 S2n 0.08 cfs 0.08 cfs 358.07 0.14 0.0* 1- S2n 0.07 0.11 0.07 0.05 3.03 0.17 0.10 cfs 0.10 cfs 358.08 0.15 0.0* 1- S2n 0.07 0.12 0.07 0.05 3.12 0.18 0.11 cfs 0.11 cfs 358.09 0.16 0.0* 1- S2n 0.08 0.12 0.08 0.06 3.23 0.19 0.13 cfs 0.13 cfs 358.10 0.17 0.0* 1- S2n 0.08 0.13 0.08 0.06 3.38 0.20 0.14 cfs 0.14 cfs 358.11 0.18 0.0* 1- S2n 0.09 0.14 0.09 0.06 3.51 0.21 0.16 cfs 0.16 cfs 358.12 0.19 0.0* 1- S2n 0.09 0.15 0.09 0.07 3.62 0.22 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 357.93 ft, Outlet Elevation (invert): 355.44 ft Culvert Length: 70.04 ft, Culvert Slope: 0.0356 Culvert Data Summary - Culvert B Barrel Shape: Circular Barrel Diameter: 1.50 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Square Edge with Headwall Inlet Depression: None Tailwater Data for Crossing: Culvert B Table 2 - Downstream Channel Rating Curve (Crossing: Culvert B) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.01 355.45 0.01 0.08 0.00 0.12 0.03 355.46 0.02 0.11 0.00 0.13 0.04 355.47 0.03 0.13 0.00 0.13 0.05 355.48 0.04 0.15 0.00 0.14 0.06 355.48 0.04 0.15 0.00 0.14 0.08 355.49 0.05 0.17 0.00 0.14 0.10 355.49 0.05 0.18 0.00 0.14 0.11 355.50 0.06 0.19 0.00 0.15 0.13 355.50 0.06 0.20 0.00 0.15 0.14 355.50 0.06 0.21 0.00 0.15 0.16 355.51 0.07 0.22 0.00 0.15 Tailwater Channel Data - Culvert B Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 355.44 ft Roadway Data for Crossing: Culvert B Roadway Profile Shape: Constant Roadway Elevation Crest Length: 10.00 ft Crest Elevation: 365.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert C Table 3 - Culvert Summary Table: Culvert C Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.13 cfs 0.13 cfs 291.82 0.15 0.0* 1- S2n 0.06 0.12 0.06 0.06 5.06 0.21 0.29 cfs 0.29 cfs 291.90 0.23 0.0* 1- S2n 0.08 0.18 0.08 0.10 6.46 0.28 0.45 cfs 0.45 cfs 291.95 0.28 0.0* 1-0.11 0.23 0.11 0.13 7.13 0.33 S2n 0.61 cfs 0.61 cfs 292.00 0.33 0.0* 1- S2n 0.12 0.27 0.12 0.15 7.93 0.37 0.73 cfs 0.73 cfs 292.03 0.36 0.0* 1- S2n 0.13 0.29 0.13 0.17 8.37 0.39 0.93 cfs 0.93 cfs 292.08 0.41 0.0* 1- S2n 0.15 0.33 0.15 0.20 8.89 0.43 1.09 cfs 1.09 cfs 292.11 0.44 0.0* 1- S2n 0.16 0.36 0.16 0.22 9.32 0.45 1.25 cfs 1.25 cfs 292.15 0.48 0.0* 1- S2n 0.17 0.39 0.17 0.24 9.76 0.48 1.42 cfs 1.42 cfs 292.18 0.51 0.0* 1- S2n 0.18 0.41 0.18 0.25 10.12 0.50 1.58 cfs 1.58 cfs 292.21 0.54 0.0* 1- S2n 0.19 0.43 0.19 0.27 10.43 0.52 1.74 cfs 1.74 cfs 292.23 0.56 0.0* 1- S2n 0.20 0.46 0.20 0.28 10.70 0.54 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 291.67 ft, Outlet Elevation (invert): 279.94 ft Culvert Length: 101.68 ft, Culvert Slope: 0.1161 Culvert Data Summary - Culvert C Barrel Shape: Circular Barrel Diameter: 2.00 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert C Table 3 - Downstream Channel Rating Curve (Crossing: Culvert C) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.13 280.00 0.06 0.21 0.00 0.15 0.29 280.04 0.10 0.28 0.01 0.16 0.45 280.07 0.13 0.33 0.01 0.17 0.61 280.09 0.15 0.37 0.01 0.17 0.73 280.11 0.17 0.39 0.01 0.17 0.93 280.14 0.20 0.43 0.01 0.18 1.09 280.16 0.22 0.45 0.01 0.18 1.25 280.18 0.24 0.48 0.01 0.18 1.42 280.19 0.25 0.50 0.02 0.18 1.58 280.21 0.27 0.52 0.02 0.19 1.74 280.22 0.28 0.54 0.02 0.19 Tailwater Channel Data - Culvert C Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 279.94 ft Roadway Data for Crossing: Culvert C Roadway Profile Shape: Constant Roadway Elevation Crest Length: 10.00 ft Crest Elevation: 305.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert D Table 4 - Culvert Summary Table: Culvert D Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.09 cfs 0.09 cfs 293.39 0.13 0.0* 1- S2n 0.05 0.10 0.05 0.05 4.16 0.18 0.21 cfs 0.21 cfs 293.45 0.19 0.0* 1- S2n 0.07 0.16 0.07 0.08 5.53 0.25 0.32 cfs 0.32 cfs 293.50 0.24 0.0* 1- S2n 0.09 0.19 0.09 0.11 6.12 0.29 0.43 cfs 0.43 cfs 293.54 0.28 0.0* 1- S2n 0.11 0.23 0.11 0.13 6.62 0.32 0.52 cfs 0.52 cfs 293.57 0.31 0.0* 1- S2n 0.12 0.25 0.12 0.14 7.06 0.35 0.66 cfs 0.66 cfs 293.61 0.35 0.0* 1- S2n 0.13 0.28 0.13 0.16 7.59 0.38 0.78 cfs 0.78 cfs 293.64 0.38 0.0* 1- S2n 0.14 0.30 0.14 0.18 7.91 0.40 0.89 cfs 0.89 cfs 293.67 0.41 0.0* 1- S2n 0.15 0.32 0.15 0.19 8.17 0.42 1.00 cfs 1.00 cfs 293.69 0.43 0.0* 1- S2n 0.16 0.34 0.16 0.21 8.50 0.44 1.12 cfs 1.12 cfs 293.72 0.46 0.0* 1- S2n 0.17 0.36 0.17 0.22 8.81 0.46 1.23 cfs 1.23 cfs 293.74 0.48 0.0* 1- S2n 0.18 0.38 0.18 0.23 9.08 0.47 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 293.26 ft, Outlet Elevation (invert): 280.79 ft Culvert Length: 130.60 ft, Culvert Slope: 0.0959 Culvert Data Summary - Culvert D Barrel Shape: Circular Barrel Diameter: 2.00 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert D Table 4 - Downstream Channel Rating Curve (Crossing: Culvert D) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.09 280.84 0.05 0.18 0.00 0.14 0.21 280.87 0.08 0.25 0.01 0.15 0.32 280.90 0.11 0.29 0.01 0.16 0.43 280.92 0.13 0.32 0.01 0.17 0.52 280.93 0.14 0.35 0.01 0.17 0.66 280.95 0.16 0.38 0.01 0.17 0.78 280.97 0.18 0.40 0.01 0.17 0.89 280.98 0.19 0.42 0.01 0.18 1.00 281.00 0.21 0.44 0.01 0.18 1.12 281.01 0.22 0.46 0.01 0.18 1.23 281.02 0.23 0.47 0.01 0.18 Tailwater Channel Data - Culvert D Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 280.79 ft Roadway Data for Crossing: Culvert D Roadway Profile Shape: Constant Roadway Elevation Crest Length: 20.00 ft Crest Elevation: 306.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert E Table 5 - Culvert Summary Table: Culvert E Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.01 cfs 0.01 cfs 329.30 0.30 1.550 7- M1t 0.01 0.00 0.01 0.01 3.95 0.07 0.02 cfs 0.02 cfs 327.81 0.06 0.0* 1- S2n 0.02 0.05 0.02 0.02 3.80 0.10 0.03 cfs 0.03 cfs 327.83 0.08 0.0* 1- S2n 0.03 0.06 0.03 0.03 3.80 0.12 0.04 cfs 0.04 cfs 327.84 0.09 0.0* 1- S2n 0.04 0.08 0.04 0.03 3.80 0.13 0.05 cfs 0.05 cfs 327.85 0.10 0.0* 1- S2n 0.04 0.08 0.04 0.03 3.86 0.14 0.07 cfs 0.07 cfs 327.86 0.11 0.0* 1- S2n 0.04 0.09 0.04 0.04 4.40 0.16 0.08 cfs 0.08 cfs 327.87 0.12 0.0* 1- S2n 0.05 0.10 0.05 0.04 4.67 0.17 0.09 cfs 0.09 cfs 327.88 0.13 0.0* 1- S2n 0.05 0.11 0.05 0.05 4.90 0.18 0.10 cfs 0.10 cfs 327.89 0.14 0.0* 1- S2n 0.05 0.12 0.05 0.05 5.08 0.19 0.11 cfs 0.11 cfs 327.90 0.15 0.0* 1- S2n 0.05 0.12 0.05 0.06 5.24 0.19 0.12 cfs 0.12 cfs 327.91 0.16 0.0* 1- S2n 0.06 0.13 0.06 0.06 5.38 0.20 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 327.75 ft, Outlet Elevation (invert): 320.06 ft Culvert Length: 61.48 ft, Culvert Slope: 0.1261 Culvert Data Summary - Culvert E Barrel Shape: Circular Barrel Diameter: 1.50 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert E Table 5 - Downstream Channel Rating Curve (Crossing: Culvert E) Flow (cfs) Water Surface Velocity (ft/s) Depth (ft) Shear (psf) Froude Number Elev (ft) 0.01 320.07 0.01 0.07 0.00 0.11 0.02 320.08 0.02 0.10 0.00 0.12 0.03 320.09 0.03 0.12 0.00 0.13 0.04 320.09 0.03 0.13 0.00 0.13 0.05 320.09 0.03 0.14 0.00 0.13 0.07 320.10 0.04 0.16 0.00 0.14 0.08 320.10 0.04 0.17 0.00 0.14 0.09 320.11 0.05 0.18 0.00 0.14 0.10 320.11 0.05 0.19 0.00 0.14 0.11 320.12 0.06 0.19 0.00 0.15 0.12 320.12 0.06 0.20 0.00 0.15 Tailwater Channel Data - Culvert E Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 320.06 ft Roadway Data for Crossing: Culvert E Roadway Profile Shape: Constant Roadway Elevation Crest Length: 20.00 ft Crest Elevation: 333.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert F Table 6 - Culvert Summary Table: Culvert F Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.01 cfs 0.01 cfs 334.48 0.05 0.0* 1- S2n 0.01 0.04 0.01 0.01 2.89 0.08 0.03 cfs 0.03 cfs 334.50 0.07 0.0* 1- S2n 0.03 0.06 0.03 0.02 2.89 0.11 0.04 cfs 0.04 cfs 334.52 0.09 0.0* 1- S2n 0.04 0.07 0.04 0.03 3.11 0.13 0.06 cfs 0.06 cfs 334.54 0.11 0.0* 1- S2n 0.05 0.09 0.05 0.04 3.51 0.15 0.07 cfs 0.07 cfs 334.55 0.12 0.0* 1- S2n 0.05 0.09 0.05 0.04 3.72 0.16 0.09 cfs 0.09 cfs 334.57 0.14 0.0* 1- S2n 0.05 0.11 0.05 0.05 4.00 0.17 0.10 cfs 0.10 cfs 334.58 0.15 0.0* 1- S2n 0.06 0.12 0.06 0.05 4.16 0.19 0.12 cfs 0.12 cfs 334.59 0.16 0.0* 1- S2n 0.06 0.12 0.07 0.06 3.93 0.20 0.13 cfs 0.13 cfs 334.60 0.17 0.0* 1- S2n 0.07 0.13 0.07 0.06 4.40 0.21 0.15 cfs 0.15 cfs 334.61 0.18 0.0* 1- S2n 0.07 0.14 0.07 0.07 4.49 0.21 0.16 cfs 0.16 cfs 334.62 0.19 0.0* 1- S2n 0.08 0.15 0.08 0.07 4.59 0.22 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 334.43 ft, Outlet Elevation (invert): 329.04 ft Culvert Length: 74.20 ft, Culvert Slope: 0.0728 Culvert Data Summary - Culvert F Barrel Shape: Circular Barrel Diameter: 1.50 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert F Table 6 - Downstream Channel Rating Curve (Crossing: Culvert F) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.01 329.05 0.01 0.08 0.00 0.12 0.03 329.06 0.02 0.11 0.00 0.13 0.04 329.07 0.03 0.13 0.00 0.13 0.06 329.08 0.04 0.15 0.00 0.14 0.07 329.08 0.04 0.16 0.00 0.14 0.09 329.09 0.05 0.17 0.00 0.14 0.10 329.09 0.05 0.19 0.00 0.14 0.12 329.10 0.06 0.20 0.00 0.15 0.13 329.10 0.06 0.21 0.00 0.15 0.15 329.11 0.07 0.21 0.00 0.15 0.16 329.11 0.07 0.22 0.00 0.15 Tailwater Channel Data - Culvert F Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 329.04 ft Roadway Data for Crossing: Culvert F Roadway Profile Shape: Constant Roadway Elevation Crest Length: 10.00 ft Crest Elevation: 345.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert G Table 7 - Culvert Summary Table: Culvert G Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.01 cfs 0.01 cfs 358.92 0.13 1.132 7- M1t 0.01 0.01 0.01 0.01 4.63 0.06 0.01 cfs 0.01 cfs 357.84 0.05 0.0* 1- S2n 0.01 0.04 0.01 0.01 3.83 0.08 0.02 cfs 0.02 cfs 357.85 0.06 0.0* 1- S2n 0.02 0.06 0.02 0.02 3.83 0.10 0.03 cfs 0.03 cfs 357.86 0.07 0.0* 1- S2n 0.03 0.06 0.03 0.02 4.19 0.11 0.03 cfs 0.03 cfs 357.87 0.08 0.0* 1- S2n 0.03 0.07 0.03 0.03 4.53 0.12 0.04 cfs 0.04 cfs 357.88 0.09 0.0* 1- S2n 0.03 0.08 0.03 0.03 4.65 0.13 0.05 cfs 0.05 cfs 357.89 0.10 0.0* 1-0.03 0.09 0.04 0.03 4.59 0.14 S2n 0.05 cfs 0.05 cfs 357.90 0.11 0.0* 1- S2n 0.04 0.09 0.04 0.04 5.36 0.14 0.06 cfs 0.06 cfs 357.90 0.11 0.0* 1- S2n 0.04 0.10 0.04 0.04 5.52 0.15 0.07 cfs 0.07 cfs 357.91 0.12 0.0* 1- S2n 0.04 0.10 0.04 0.04 5.66 0.16 0.07 cfs 0.07 cfs 357.92 0.13 0.0* 1- S2n 0.04 0.11 0.04 0.04 5.78 0.16 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 357.79 ft, Outlet Elevation (invert): 346.13 ft Culvert Length: 54.27 ft, Culvert Slope: 0.2200 Culvert Data Summary - Culvert G Barrel Shape: Circular Barrel Diameter: 1.00 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert G Table 7 - Downstream Channel Rating Curve (Crossing: Culvert G) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.01 346.14 0.01 0.06 0.00 0.11 0.01 346.14 0.01 0.08 0.00 0.12 0.02 346.15 0.02 0.10 0.00 0.12 0.03 346.15 0.02 0.11 0.00 0.13 0.03 346.16 0.03 0.12 0.00 0.13 0.04 346.16 0.03 0.13 0.00 0.13 0.05 346.16 0.03 0.14 0.00 0.13 0.05 346.17 0.04 0.14 0.00 0.14 0.06 346.17 0.04 0.15 0.00 0.14 0.07 346.17 0.04 0.16 0.00 0.14 0.07 346.17 0.04 0.16 0.00 0.14 Tailwater Channel Data - Culvert G Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 346.13 ft Roadway Data for Crossing: Culvert G Roadway Profile Shape: Constant Roadway Elevation Crest Length: 10.00 ft Crest Elevation: 361.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert H Table 8 - Culvert Summary Table: Culvert H Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.01 cfs 0.01 cfs 360.78 0.30 1.784 7- M1t 0.01 0.00 0.01 0.01 3.85 0.06 0.02 cfs 0.02 cfs 359.06 0.06 0.0* 1- S2n 0.01 0.05 0.01 0.02 3.81 0.09 0.02 cfs 0.02 cfs 359.07 0.07 0.0* 1- S2n 0.02 0.06 0.02 0.02 3.81 0.11 0.03 cfs 0.03 cfs 359.08 0.08 0.0* 1- S2n 0.03 0.07 0.03 0.03 3.81 0.12 0.04 cfs 0.04 cfs 359.09 0.09 0.0* 1-0.03 0.07 0.03 0.03 3.81 0.13 S2n 0.05 cfs 0.05 cfs 359.10 0.10 0.0* 1- S2n 0.04 0.08 0.04 0.04 3.99 0.14 0.06 cfs 0.06 cfs 359.11 0.11 0.0* 1- S2n 0.04 0.09 0.04 0.04 4.27 0.15 0.07 cfs 0.07 cfs 359.12 0.12 0.0* 1- S2n 0.04 0.10 0.05 0.04 4.28 0.16 0.08 cfs 0.08 cfs 359.12 0.12 0.0* 1- S2n 0.05 0.10 0.05 0.05 4.71 0.17 0.09 cfs 0.09 cfs 359.13 0.13 0.0* 1- S2n 0.05 0.11 0.05 0.05 4.88 0.18 0.10 cfs 0.10 cfs 359.14 0.14 0.0* 1- S2n 0.05 0.11 0.05 0.05 5.03 0.18 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 359.00 ft, Outlet Elevation (invert): 353.93 ft Culvert Length: 40.32 ft, Culvert Slope: 0.1267 Culvert Data Summary - Culvert H Barrel Shape: Circular Barrel Diameter: 1.50 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert H Table 8 - Downstream Channel Rating Curve (Crossing: Culvert H) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.01 353.94 0.01 0.06 0.00 0.11 0.02 353.95 0.02 0.09 0.00 0.12 0.02 353.95 0.02 0.11 0.00 0.13 0.03 353.96 0.03 0.12 0.00 0.13 0.04 353.96 0.03 0.13 0.00 0.13 0.05 353.97 0.04 0.14 0.00 0.14 0.06 353.97 0.04 0.15 0.00 0.14 0.07 353.97 0.04 0.16 0.00 0.14 0.08 353.98 0.05 0.17 0.00 0.14 0.09 353.98 0.05 0.18 0.00 0.14 0.10 353.98 0.05 0.18 0.00 0.14 Tailwater Channel Data - Culvert H Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 353.93 ft Roadway Data for Crossing: Culvert H Roadway Profile Shape: Constant Roadway Elevation Crest Length: 20.00 ft Crest Elevation: 360.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert I Table 9 - Culvert Summary Table: Culvert I Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.12 cfs 0.12 cfs 328.11 0.15 0.0* 1- S2n 0.09 0.12 0.09 0.06 2.41 0.20 0.26 cfs 0.26 cfs 328.19 0.23 0.0* 1- S2n 0.13 0.17 0.13 0.09 3.04 0.27 0.41 cfs 0.41 cfs 328.25 0.29 0.0* 1-0.16 0.22 0.16 0.12 3.42 0.32 S2n 0.55 cfs 0.55 cfs 328.30 0.34 0.0* 1- S2n 0.18 0.25 0.18 0.15 3.76 0.35 0.66 cfs 0.66 cfs 328.33 0.37 0.0* 1- S2n 0.20 0.28 0.20 0.16 3.94 0.38 0.84 cfs 0.84 cfs 328.38 0.42 0.0* 1- S2n 0.23 0.31 0.23 0.19 4.26 0.41 0.98 cfs 0.98 cfs 328.42 0.46 0.0* 1- S2n 0.25 0.34 0.25 0.20 4.46 0.44 1.13 cfs 1.13 cfs 328.45 0.49 0.0* 1- S2n 0.26 0.37 0.26 0.22 4.64 0.46 1.27 cfs 1.27 cfs 328.48 0.52 0.0* 1- S2n 0.28 0.39 0.28 0.24 4.82 0.48 1.42 cfs 1.42 cfs 328.51 0.55 0.0* 1- S2n 0.29 0.41 0.29 0.25 4.97 0.50 1.56 cfs 1.56 cfs 328.54 0.58 0.0* 1- S2n 0.31 0.43 0.31 0.27 5.10 0.52 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 327.96 ft, Outlet Elevation (invert): 326.83 ft Culvert Length: 73.01 ft, Culvert Slope: 0.0155 Culvert Data Summary - Culvert I Barrel Shape: Circular Barrel Diameter: 2.00 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert I Table 9 - Downstream Channel Rating Curve (Crossing: Culvert I) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.12 326.89 0.06 0.20 0.00 0.15 0.26 326.92 0.09 0.27 0.01 0.16 0.41 326.95 0.12 0.32 0.01 0.16 0.55 326.98 0.15 0.35 0.01 0.17 0.66 326.99 0.16 0.38 0.01 0.17 0.84 327.02 0.19 0.41 0.01 0.18 0.98 327.03 0.20 0.44 0.01 0.18 1.13 327.05 0.22 0.46 0.01 0.18 1.27 327.07 0.24 0.48 0.01 0.18 1.42 327.08 0.25 0.50 0.02 0.18 1.56 327.10 0.27 0.52 0.02 0.19 Tailwater Channel Data - Culvert I Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 326.83 ft Roadway Data for Crossing: Culvert I Roadway Profile Shape: Constant Roadway Elevation Crest Length: 10.00 ft Crest Elevation: 340.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert J Table 10 - Culvert Summary Table: Culvert J Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.00 cfs 0.00 cfs 333.66 0.38 1.800 7- M1t 0.00 0.00 0.01 0.01 3.37 0.04 0.00 cfs 0.00 cfs 332.72 0.38 0.862 3- M1t 0.01 0.00 0.01 0.01 3.67 0.05 0.01 cfs 0.01 cfs 332.43 0.39 0.571 3- M1t 0.01 0.00 0.01 0.01 3.83 0.06 0.01 cfs 0.01 cfs 331.90 0.04 0.0* 1- S2n 0.01 0.03 0.01 0.01 2.52 0.07 0.01 cfs 0.01 cfs 331.91 0.05 0.0* 1- S2n 0.01 0.04 0.01 0.01 2.52 0.07 0.01 cfs 0.01 cfs 331.91 0.05 0.0* 1- S2n 0.02 0.04 0.02 0.02 2.52 0.08 0.02 cfs 0.02 cfs 331.92 0.06 0.0* 1- S2n 0.02 0.04 0.02 0.02 2.52 0.09 0.02 cfs 0.02 cfs 331.92 0.06 0.0* 1- S2n 0.02 0.05 0.02 0.02 2.52 0.09 0.02 cfs 0.02 cfs 331.92 0.06 0.0* 1- S2n 0.02 0.05 0.02 0.02 2.52 0.10 0.02 cfs 0.02 cfs 331.93 0.07 0.0* 1- S2n 0.03 0.05 0.03 0.02 2.52 0.10 0.02 cfs 0.02 cfs 331.93 0.07 0.0* 1- S2n 0.03 0.06 0.03 0.02 2.52 0.11 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 331.86 ft, Outlet Elevation (invert): 329.92 ft Culvert Length: 35.05 ft, Culvert Slope: 0.0554 Culvert Data Summary - Culvert J Barrel Shape: Circular Barrel Diameter: 1.50 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert J Table 10 - Downstream Channel Rating Curve (Crossing: Culvert J) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.00 329.93 0.01 0.04 0.00 0.10 0.00 329.93 0.01 0.05 0.00 0.11 0.01 329.93 0.01 0.06 0.00 0.11 0.01 329.93 0.01 0.07 0.00 0.11 0.01 329.93 0.01 0.07 0.00 0.11 0.01 329.94 0.02 0.08 0.00 0.12 0.02 329.94 0.02 0.09 0.00 0.12 0.02 329.94 0.02 0.09 0.00 0.12 0.02 329.94 0.02 0.10 0.00 0.12 0.02 329.94 0.02 0.10 0.00 0.12 0.02 329.94 0.02 0.11 0.00 0.13 Tailwater Channel Data - Culvert J Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 329.92 ft Roadway Data for Crossing: Culvert J Roadway Profile Shape: Constant Roadway Elevation Crest Length: 10.00 ft Crest Elevation: 333.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert K Table 11 - Culvert Summary Table: Culvert K Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.01 cfs 0.01 cfs 329.86 0.05 0.0* 1- S2n 0.02 0.04 0.02 0.02 2.47 0.09 0.03 cfs 0.03 cfs 329.89 0.08 0.0* 1- S2n 0.04 0.06 0.04 0.03 2.53 0.12 0.05 cfs 0.05 cfs 329.91 0.10 0.0* 1- S2n 0.05 0.08 0.05 0.03 3.02 0.14 0.07 cfs 0.07 cfs 329.93 0.12 0.0* 1- S2n 0.05 0.09 0.05 0.04 3.33 0.16 0.08 cfs 0.08 cfs 329.94 0.13 0.0* 1- S2n 0.06 0.10 0.06 0.05 3.51 0.17 0.10 cfs 0.10 cfs 329.96 0.15 0.0* 1- S2n 0.07 0.12 0.07 0.05 3.70 0.19 0.12 cfs 0.12 cfs 329.97 0.16 0.0* 1- S2n 0.07 0.13 0.07 0.06 3.82 0.20 0.14 cfs 0.14 cfs 329.99 0.18 0.0* 1- S2n 0.08 0.14 0.08 0.06 3.94 0.21 0.16 cfs 0.16 cfs 330.00 0.19 0.0* 1- S2n 0.08 0.14 0.08 0.07 4.12 0.22 0.17 cfs 0.17 cfs 330.01 0.20 0.0* 1- S2n 0.09 0.15 0.09 0.07 4.28 0.23 0.19 cfs 0.19 cfs 330.02 0.21 0.0* 1- S2n 0.09 0.16 0.09 0.08 4.42 0.24 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 329.81 ft, Outlet Elevation (invert): 327.84 ft Culvert Length: 37.05 ft, Culvert Slope: 0.0532 Culvert Data Summary - Culvert K Barrel Shape: Circular Barrel Diameter: 1.50 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert K Table 11 - Downstream Channel Rating Curve (Crossing: Culvert K) Flow (cfs) Water Surface Velocity (ft/s) Depth (ft) Shear (psf) Froude Number Elev (ft) 0.01 327.86 0.02 0.09 0.00 0.12 0.03 327.87 0.03 0.12 0.00 0.13 0.05 327.87 0.03 0.14 0.00 0.13 0.07 327.88 0.04 0.16 0.00 0.14 0.08 327.89 0.05 0.17 0.00 0.14 0.10 327.89 0.05 0.19 0.00 0.14 0.12 327.90 0.06 0.20 0.00 0.15 0.14 327.90 0.06 0.21 0.00 0.15 0.16 327.91 0.07 0.22 0.00 0.15 0.17 327.91 0.07 0.23 0.00 0.15 0.19 327.92 0.08 0.24 0.00 0.15 Tailwater Channel Data - Culvert K Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 327.84 ft Roadway Data for Crossing: Culvert K Roadway Profile Shape: Constant Roadway Elevation Crest Length: 10.00 ft Crest Elevation: 331.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert L Table 12 - Culvert Summary Table: Culvert L Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.04 cfs 0.04 cfs 326.61 0.10 0.0* 1- S2n 0.04 0.08 0.04 0.03 3.35 0.14 0.10 cfs 0.10 cfs 326.66 0.15 0.0* 1- S2n 0.06 0.12 0.06 0.05 4.40 0.19 0.16 cfs 0.16 cfs 326.69 0.18 0.0* 1- S2n 0.07 0.15 0.07 0.07 4.84 0.22 0.21 cfs 0.21 cfs 326.72 0.21 0.0* 1- S2n 0.08 0.17 0.08 0.08 5.34 0.25 0.26 cfs 0.26 cfs 326.74 0.23 0.0* 1- S2n 0.09 0.19 0.09 0.09 5.67 0.27 0.32 cfs 0.32 cfs 326.77 0.26 0.0* 1- S2n 0.10 0.21 0.10 0.11 6.06 0.29 0.38 cfs 0.38 cfs 326.80 0.29 0.0* 1- S2n 0.11 0.23 0.11 0.12 6.30 0.31 0.44 cfs 0.44 cfs 326.82 0.31 0.0* 1- S2n 0.12 0.24 0.12 0.13 6.57 0.32 0.49 cfs 0.49 cfs 326.84 0.33 0.0* 1- S2n 0.13 0.26 0.13 0.14 6.84 0.34 0.55 cfs 0.55 cfs 326.86 0.35 0.0* 1- S2n 0.13 0.27 0.13 0.14 7.07 0.35 0.60 cfs 0.60 cfs 326.87 0.36 0.0* 1- S2n 0.14 0.29 0.14 0.15 7.27 0.37 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 326.51 ft, Outlet Elevation (invert): 322.80 ft Culvert Length: 44.16 ft, Culvert Slope: 0.0843 Culvert Data Summary - Culvert L Barrel Shape: Circular Barrel Diameter: 1.50 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert L Table 12 - Downstream Channel Rating Curve (Crossing: Culvert L) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.04 322.83 0.03 0.14 0.00 0.13 0.10 322.85 0.05 0.19 0.00 0.14 0.16 322.87 0.07 0.22 0.00 0.15 0.21 322.88 0.08 0.25 0.01 0.15 0.26 322.89 0.09 0.27 0.01 0.16 0.32 322.91 0.11 0.29 0.01 0.16 0.38 322.92 0.12 0.31 0.01 0.16 0.44 322.93 0.13 0.32 0.01 0.17 0.49 322.94 0.14 0.34 0.01 0.17 0.55 322.94 0.14 0.35 0.01 0.17 0.60 322.95 0.15 0.37 0.01 0.17 Tailwater Channel Data - Culvert L Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 322.80 ft Roadway Data for Crossing: Culvert L Roadway Profile Shape: Constant Roadway Elevation Crest Length: 20.00 ft Crest Elevation: 327.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert M Table 13 - Culvert Summary Table: Culvert M Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.01 cfs 0.01 cfs 322.99 0.05 0.0* 1- S2n 0.01 0.04 0.01 0.01 3.56 0.08 0.02 cfs 0.02 cfs 323.00 0.06 0.0* 1- S2n 0.02 0.05 0.02 0.02 3.56 0.11 0.04 cfs 0.02 cfs 323.01 0.07 0.0* 1- S2n 0.02 0.05 0.03 0.03 2.43 0.13 0.05 cfs 0.02 cfs 323.01 0.07 0.0* 1- S2n 0.02 0.06 0.02 0.03 3.56 0.14 0.06 cfs 0.03 cfs 323.01 0.07 0.0* 1- S2n 0.02 0.06 0.02 0.04 3.56 0.15 0.08 cfs 0.03 cfs 323.01 0.07 0.0* 1- S2n 0.02 0.06 0.02 0.04 3.56 0.17 0.09 cfs 0.03 cfs 323.02 0.08 0.0* 1-0.03 0.06 0.03 0.05 3.56 0.18 S2n 0.10 cfs 0.03 cfs 323.02 0.08 0.0* 1- S2n 0.03 0.06 0.03 0.05 3.56 0.19 0.11 cfs 0.03 cfs 323.02 0.08 0.0* 1- S2n 0.03 0.07 0.03 0.06 3.56 0.19 0.13 cfs 0.03 cfs 323.02 0.08 0.0* 1- S2n 0.03 0.07 0.03 0.06 3.56 0.20 0.14 cfs 0.04 cfs 323.02 0.08 0.0* 1- S2n 0.03 0.07 0.03 0.06 3.56 0.21 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 322.94 ft, Outlet Elevation (invert): 319.96 ft Culvert Length: 27.16 ft, Culvert Slope: 0.1104 Culvert Data Summary - Culvert M Barrel Shape: Circular Barrel Diameter: 1.50 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert M Table 13 - Downstream Channel Rating Curve (Crossing: Culvert M) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.01 319.97 0.01 0.08 0.00 0.12 0.02 319.98 0.02 0.11 0.00 0.13 0.04 319.99 0.03 0.13 0.00 0.13 0.05 319.99 0.03 0.14 0.00 0.13 0.06 320.00 0.04 0.15 0.00 0.14 0.08 320.00 0.04 0.17 0.00 0.14 0.09 320.01 0.05 0.18 0.00 0.14 0.10 320.01 0.05 0.19 0.00 0.14 0.11 320.02 0.06 0.19 0.00 0.15 0.13 320.02 0.06 0.20 0.00 0.15 0.14 320.02 0.06 0.21 0.00 0.15 Tailwater Channel Data - Culvert M Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 319.96 ft Roadway Data for Crossing: Culvert M Roadway Profile Shape: Constant Roadway Elevation Crest Length: 10.00 ft Crest Elevation: 323.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert N Table 14 - Culvert Summary Table: Culvert N Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.61 cfs 0.61 cfs 274.30 0.33 0.0* 1- S2n 0.15 0.25 0.15 0.15 5.04 0.37 1.35 cfs 1.35 cfs 274.46 0.49 0.0* 1- S2n 0.22 0.38 0.22 0.25 6.36 0.49 2.09 cfs 2.09 cfs 274.59 0.62 0.0* 1- S2n 0.27 0.47 0.27 0.32 7.22 0.57 2.83 cfs 2.83 cfs 274.70 0.73 0.0* 1- S2n 0.32 0.55 0.32 0.38 7.88 0.63 3.39 cfs 3.39 cfs 274.77 0.80 0.0* 1-0.34 0.60 0.34 0.42 8.34 0.67 S2n 4.32 cfs 4.32 cfs 274.87 0.90 0.0* 1- S2n 0.39 0.68 0.39 0.48 8.93 0.73 5.06 cfs 5.06 cfs 274.95 0.98 0.0* 1- S2n 0.42 0.74 0.42 0.52 9.38 0.77 5.80 cfs 5.80 cfs 275.03 1.06 0.0* 1- S2n 0.45 0.80 0.45 0.57 9.75 0.80 6.54 cfs 6.54 cfs 275.10 1.13 0.0* 1- S2n 0.47 0.85 0.47 0.60 10.11 0.83 7.28 cfs 7.28 cfs 275.16 1.19 0.0* 1- S2n 0.50 0.90 0.50 0.64 10.43 0.86 8.03 cfs 8.03 cfs 275.23 1.26 0.0* 1- S2n 0.52 0.94 0.52 0.68 10.73 0.89 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 273.97 ft, Outlet Elevation (invert): 269.54 ft Culvert Length: 127.08 ft, Culvert Slope: 0.0349 Culvert Data Summary - Culvert N Barrel Shape: Circular Barrel Diameter: 2.50 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert N Table 14 - Downstream Channel Rating Curve (Crossing: Culvert N) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.61 269.69 0.15 0.37 0.01 0.17 1.35 269.79 0.25 0.49 0.02 0.18 2.09 269.86 0.32 0.57 0.02 0.19 2.83 269.92 0.38 0.63 0.02 0.20 3.39 269.96 0.42 0.67 0.03 0.20 4.32 270.02 0.48 0.73 0.03 0.20 5.06 270.06 0.52 0.77 0.03 0.20 5.80 270.11 0.57 0.80 0.04 0.21 6.54 270.14 0.60 0.83 0.04 0.21 7.28 270.18 0.64 0.86 0.04 0.21 8.03 270.22 0.68 0.89 0.04 0.21 Tailwater Channel Data - Culvert N Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 269.54 ft Roadway Data for Crossing: Culvert N Roadway Profile Shape: Constant Roadway Elevation Crest Length: 20.00 ft Crest Elevation: 290.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert O Table 15 - Culvert Summary Table: Culvert O Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 2.11 cfs 2.11 cfs 134.85 0.75 0.849 7- H2c -1.00 0.55 0.55 0.32 3.61 0.57 2.53 cfs 2.53 cfs 134.94 0.84 0.935 7- H2c -1.00 0.60 0.60 0.35 3.81 0.61 2.96 cfs 2.96 cfs 135.02 0.92 1.016 7--1.00 0.65 0.65 0.39 4.00 0.64 H2c 3.39 cfs 3.39 cfs 135.09 1.00 1.093 7- H2c -1.00 0.70 0.70 0.42 4.18 0.67 3.82 cfs 3.82 cfs 135.17 1.07 1.168 7- H2c -1.00 0.75 0.75 0.45 4.34 0.70 4.10 cfs 4.10 cfs 135.22 1.11 1.215 7- H2c -1.00 0.77 0.77 0.46 4.45 0.71 4.67 cfs 4.67 cfs 135.31 1.20 1.311 7- H2c -1.00 0.83 0.83 0.50 4.65 0.75 5.10 cfs 5.10 cfs 135.38 1.26 1.380 7- H2c -1.00 0.87 0.87 0.53 4.80 0.77 5.52 cfs 5.52 cfs 135.45 1.32 1.449 7- H2c -1.00 0.91 0.91 0.55 4.95 0.79 5.95 cfs 5.95 cfs 135.52 1.38 1.518 7- H2c -1.00 0.94 0.94 0.57 5.09 0.81 6.38 cfs 6.38 cfs 135.59 1.44 1.587 7- H2c -1.00 0.98 0.98 0.60 5.24 0.82 Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 134.00 ft, Outlet Elevation (invert): 134.00 ft Culvert Length: 40.00 ft, Culvert Slope: 0.0000 Culvert Data Summary - Culvert O Barrel Shape: Circular Barrel Diameter: 1.50 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert O Table 15 - Downstream Channel Rating Curve (Crossing: Culvert O) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 2.11 134.32 0.32 0.57 0.02 0.19 2.53 134.35 0.35 0.61 0.02 0.19 2.96 134.39 0.39 0.64 0.02 0.20 3.39 134.42 0.42 0.67 0.03 0.20 3.82 134.45 0.45 0.70 0.03 0.20 4.10 134.46 0.46 0.71 0.03 0.20 4.67 134.50 0.50 0.75 0.03 0.20 5.10 134.53 0.53 0.77 0.03 0.21 5.52 134.55 0.55 0.79 0.03 0.21 5.95 134.57 0.57 0.81 0.04 0.21 6.38 134.60 0.60 0.82 0.04 0.21 Tailwater Channel Data - Culvert O Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 134.00 ft Roadway Data for Crossing: Culvert O Roadway Profile Shape: Constant Roadway Elevation Crest Length: 10.00 ft Crest Elevation: 136.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert P Table 16 - Culvert Summary Table: Culvert P Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.01 cfs 0.01 cfs 135.50 0.06 0.068 2- M2c 0.06 0.05 0.05 0.02 1.00 0.08 0.21 cfs 0.21 cfs 135.70 0.25 0.274 2- M2c 0.23 0.19 0.19 0.08 2.06 0.25 0.41 cfs 0.41 cfs 135.81 0.36 0.385 2- M2c 0.32 0.26 0.26 0.12 2.47 0.32 0.61 cfs 0.61 cfs 135.90 0.44 0.474 2- M2c 0.39 0.32 0.32 0.15 2.76 0.37 0.81 cfs 0.81 cfs 135.98 0.52 0.552 2- M2c 0.46 0.38 0.38 0.18 2.99 0.41 1.02 cfs 1.02 cfs 136.06 0.60 0.628 2- M2c 0.53 0.42 0.42 0.21 3.22 0.44 1.21 cfs 1.21 cfs 136.12 0.66 0.690 2- M2c 0.58 0.46 0.46 0.23 3.39 0.47 1.40 cfs 1.40 cfs 136.18 0.72 0.754 2- M2c 0.65 0.50 0.50 0.25 3.56 0.50 1.60 cfs 1.60 cfs 136.24 0.77 0.815 2- M2c 0.71 0.54 0.54 0.27 3.73 0.52 1.80 cfs 1.80 cfs 136.30 0.83 0.875 2- M2c 0.79 0.57 0.57 0.29 3.88 0.54 2.00 cfs 2.00 cfs 136.36 0.88 0.934 2- M2c 1.00 0.60 0.60 0.31 4.04 0.56 Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 135.43 ft, Outlet Elevation (invert): 135.36 ft Culvert Length: 30.00 ft, Culvert Slope: 0.0023 Culvert Data Summary - Culvert P Barrel Shape: Circular Barrel Diameter: 1.00 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert P Table 16 - Downstream Channel Rating Curve (Crossing: Culvert P) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.01 135.38 0.02 0.08 0.00 0.12 0.21 135.44 0.08 0.25 0.01 0.15 0.41 135.48 0.12 0.32 0.01 0.16 0.61 135.51 0.15 0.37 0.01 0.17 0.81 135.54 0.18 0.41 0.01 0.18 1.02 135.57 0.21 0.44 0.01 0.18 1.21 135.59 0.23 0.47 0.01 0.18 1.40 135.61 0.25 0.50 0.02 0.18 1.60 135.63 0.27 0.52 0.02 0.19 1.80 135.65 0.29 0.54 0.02 0.19 2.00 135.67 0.31 0.56 0.02 0.19 Tailwater Channel Data - Culvert P Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 135.36 ft Roadway Data for Crossing: Culvert P Roadway Profile Shape: Constant Roadway Elevation Crest Length: 10.00 ft Crest Elevation: 137.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert Q Table 17 - Culvert Summary Table: Culvert Q Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.01 cfs 0.01 cfs 136.15 0.30 0.041 3- M2t 0.03 0.01 0.01 0.01 4.63 0.06 0.20 cfs 0.10 cfs 136.02 0.17 0.0* 1- S2n 0.11 0.13 0.11 0.08 2.31 0.24 0.40 cfs 0.13 cfs 136.05 0.20 0.0* 1- S2n 0.12 0.15 0.12 0.12 2.48 0.32 0.58 cfs 0.15 cfs 136.06 0.21 0.0* 1- S2n 0.13 0.16 0.13 0.15 2.58 0.36 0.80 cfs 0.17 cfs 136.08 0.23 0.0* 1- S2n 0.14 0.17 0.14 0.18 2.71 0.41 1.00 cfs 0.19 cfs 136.09 0.24 0.0* 1- S2n 0.14 0.18 0.14 0.21 2.77 0.44 1.20 cfs 0.21 cfs 136.10 0.25 0.0* 1- S2n 0.15 0.19 0.15 0.23 2.88 0.47 1.40 cfs 0.23 cfs 136.12 0.27 0.0* 1- S2n 0.16 0.20 0.16 0.25 2.96 0.50 1.60 cfs 0.25 cfs 136.13 0.28 0.0* 1- S2n 0.16 0.21 0.16 0.27 3.03 0.52 1.80 cfs 0.27 cfs 136.14 0.29 0.0* 1- S2n 0.17 0.22 0.17 0.29 3.10 0.54 2.00 cfs 0.29 cfs 136.15 0.30 0.0* 1- JS1t 0.18 0.22 0.31 0.31 1.43 0.56 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 135.85 ft, Outlet Elevation (invert): 135.47 ft Culvert Length: 30.00 ft, Culvert Slope: 0.0127 Culvert Data Summary - Culvert Q Barrel Shape: Circular Barrel Diameter: 1.00 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert Q Table 17 - Downstream Channel Rating Curve (Crossing: Culvert Q) Flow (cfs) Water Surface Elev (ft) Velocity (ft/s) Depth (ft) Shear (psf) Froude Number 0.01 135.48 0.01 0.06 0.00 0.11 0.20 135.55 0.08 0.24 0.01 0.15 0.40 135.59 0.12 0.32 0.01 0.16 0.58 135.62 0.15 0.36 0.01 0.17 0.80 135.65 0.18 0.41 0.01 0.18 1.00 135.68 0.21 0.44 0.01 0.18 1.20 135.70 0.23 0.47 0.01 0.18 1.40 135.72 0.25 0.50 0.02 0.18 1.60 135.74 0.27 0.52 0.02 0.19 1.80 135.76 0.29 0.54 0.02 0.19 2.00 135.78 0.31 0.56 0.02 0.19 Tailwater Channel Data - Culvert Q Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 135.47 ft Roadway Data for Crossing: Culvert Q Roadway Profile Shape: Constant Roadway Elevation Crest Length: 10.00 ft Crest Elevation: 136.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Culvert Data: Culvert R Table 18 - Culvert Summary Table: Culvert R Total Discharge (cfs) Culvert Discharge (cfs) Headwater Elevation (ft) Inlet Control Depth (ft) Outlet Control Depth (ft) Flow Type Normal Depth (ft) Critical Depth (ft) Outlet Depth (ft) Tailwater Depth (ft) Outlet Velocity (ft/s) Tailwater Velocity (ft/s) 0.65 cfs 0.65 cfs 131.58 0.44 0.0* 1- S2n 0.18 0.33 0.18 0.16 6.61 0.38 0.79 cfs 0.79 cfs 131.63 0.49 0.0* 1- S2n 0.20 0.37 0.20 0.18 7.00 0.40 0.93 cfs 0.93 cfs 131.68 0.54 0.0* 1- S2n 0.22 0.40 0.22 0.20 7.11 0.43 1.06 cfs 1.06 cfs 131.73 0.59 0.0* 1- S2n 0.23 0.43 0.23 0.21 7.64 0.45 1.20 cfs 1.20 cfs 131.77 0.63 0.0* 1- S2n 0.25 0.46 0.25 0.23 7.92 0.47 1.27 cfs 1.27 cfs 131.79 0.65 0.0* 1- S2n 0.26 0.48 0.26 0.24 7.79 0.48 1.48 cfs 1.48 cfs 131.85 0.71 0.0* 1- S2n 0.28 0.52 0.28 0.26 8.04 0.51 1.62 cfs 1.62 cfs 131.89 0.75 0.0* 1- S2n 0.29 0.54 0.30 0.27 8.22 0.52 1.76 cfs 1.76 cfs 131.93 0.79 0.0* 1- S2n 0.30 0.56 0.31 0.29 8.34 0.54 1.90 cfs 1.90 cfs 131.97 0.83 0.0* 1- S2n 0.31 0.59 0.33 0.30 8.48 0.55 2.04 cfs 2.03 cfs 132.00 0.86 0.0* 1- S2n 0.32 0.61 0.34 0.31 8.64 0.57 * Full Flow Headwater elevation is below inlet invert. Culvert Barrel Data Culvert Barrel Type Straight Culvert Inlet Elevation (invert): 131.14 ft, Outlet Elevation (invert): 129.55 ft Culvert Length: 30.04 ft, Culvert Slope: 0.0530 Culvert Data Summary - Culvert R Barrel Shape: Circular Barrel Diameter: 1.00 ft Barrel Material: Concrete Embedment: 0.00 in Barrel Manning's n: 0.0120 Culvert Type: Straight Inlet Configuration: Grooved End Projecting Inlet Depression: None Tailwater Data for Crossing: Culvert R Table 18 - Downstream Channel Rating Curve (Crossing: Culvert R) Flow (cfs) Water Surface Velocity (ft/s) Depth (ft) Shear (psf) Froude Number Elev (ft) 0.65 129.71 0.16 0.38 0.01 0.17 0.79 129.73 0.18 0.40 0.01 0.17 0.93 129.75 0.20 0.43 0.01 0.18 1.06 129.76 0.21 0.45 0.01 0.18 1.20 129.78 0.23 0.47 0.01 0.18 1.27 129.79 0.24 0.48 0.01 0.18 1.48 129.81 0.26 0.51 0.02 0.19 1.62 129.82 0.27 0.52 0.02 0.19 1.76 129.84 0.29 0.54 0.02 0.19 1.90 129.85 0.30 0.55 0.02 0.19 2.04 129.86 0.31 0.57 0.02 0.19 Tailwater Channel Data - Culvert R Tailwater Channel Option: Trapezoidal Channel Bottom Width: 10.00 ft Side Slope (H:V): 5.00 (_:1) Channel Slope: 0.0010 Channel Manning's n: 0.0350 Channel Invert Elevation: 129.55 ft Roadway Data for Crossing: Culvert R Roadway Profile Shape: Constant Roadway Elevation Crest Length: 10.00 ft Crest Elevation: 132.00 ft Roadway Surface: Paved Roadway Top Width: 10.00 ft Appendix G: Geotechnical Report Provided under separate cover Appendix H: Downstream Analysis Olympic Discovery Trail Downstream Analysis Field Observations 33425 O:\PROJECT\33400\33425\ProjectDocs\Reports\WNR Drainage Report\Downstream Analysis\Downstream_Analysis_Field_Tables_and_Photos_ODT.docx Page 1 of 4 Downstream Analysis Existing drainage patterns are from east to west carrying runoff from the mostly forested flat uplands, through a moderately steep vegetated utility corridor towards SR 20 and Puget Sound. Four watercourses cross the existing 1.5-mile utility corridor. Within the project limits, six culverts cross the dirt road within the corridor. Four of these culverts were observed in the field as shown on Figure 1 and described in the table below and shown in photographs. No existing drainage problems were observed downstream of these locations. OUTFALLS Olympic Discovery Trail – OFF-SITE ANALYSIS DRAINAGE SYSTEM TABLE Drainage Component Type, Name, and Size Drainage Component Description Approx. Slope (%)* Distance from Site Discharge Existing Problems Potential Problems Field Observations 18” Plastic Culvert Flow is piped through culvert under dirt road 1% 0 – 10’ None None Did not have access to west side to evaluate drainage, as it was on private property 12” ADS Culvert Flow is piped through culvert under dirt road 5% 0 – 10’ None None Low point Low area where flow would accumulate 1% 500-750’ None None 12” Concrete Culvert Flow is piped through culvert under dirt road 5% 10-100’ Partially full of sediment None Culvert at base of steep slopes of road, was not shown on the survey *Slopes approximated based on GIS data. Olympic Discovery Trail Downstream Analysis Field Observations 33425 O:\PROJECT\33400\33425\ProjectDocs\Reports\WNR Drainage Report\Downstream Analysis\Downstream_Analysis_Field_Tables_and_Photos_ODT.docx Page 2 of 4 Photo 1: 18” plastic culvert on the east side of the dirt road. Photo 2: 12” ADS culvert Olympic Discovery Trail Downstream Analysis Field Observations 33425 O:\PROJECT\33400\33425\ProjectDocs\Reports\WNR Drainage Report\Downstream Analysis\Downstream_Analysis_Field_Tables_and_Photos_ODT.docx Page 3 of 4 Photo 4: Watercourse crossing downstream at SR20 Photo 3: Low point where water from project area would flow. Olympic Discovery Trail Downstream Analysis Field Observations 33425 O:\PROJECT\33400\33425\ProjectDocs\Reports\WNR Drainage Report\Downstream Analysis\Downstream_Analysis_Field_Tables_and_Photos_ODT.docx Page 4 of 4 Photo 5: Typical utility corridor vegetation. 360340280200160120 3202602401404 0 0 260380360320300220180 100 80604020 4003803803403003002 8 0180120 10080 4203804003603603 0 0 300 300 280 2 0 0 220220220140120140 80140 \\RED-AE.OTAK.COM\PROJ\PROJECT\33400\33425\CADD\GIS\APRX\33425_DOWNSTREAMFLOWPATH_RIS.APRX DATE: 10/4/2022 0 500 1,000 feet NOTE: THIS DATA IS NOT TO SURVEY ACCURACY AND IS MEANT FOR PLANNING PURPOSES ONLY. JEFFERSON COUNTY, WA 33425 OLYMPIC DISCOVERY TRAIL PROJECT DOWNSTREAM FLOW PATH ¸TDA Boundary Artificial connector Watercourse Water body interior line Estuarine and Marine Deepwater Estuarine and Marine Wetland Freshwater Emergent Wetland Freshwater Forested/Shrub Wetland Freshwater Pond Lake Other Riverine 10-ft Contours 18" Plastic Culvert Low Point 12" ADS 12" Concrete Culvert Trail Alignment Puget Sound FIGURE 1 Appendix I: Operations and Maintenance Manual to be provided with Final Report