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HomeMy WebLinkAboutBLD2003-00514 Wetland Delination WESTECI[ COMPANY Environmental Consulting-Site Permitting WETLAND DELINEATION REPORT: • LOT 5, PARCEL 1 602-353-023 BRINNON, WASHINGTON G. Bradford Shea, Ph.D. December 2002 Submitted to: JEFFERSON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT 621 Sheridan Street Port Townsend, Washington 98368 Submitted by: WESTECH COMPANY . _. _ Box 2876 6 j : , ' 7 ra Port Angeles, Washington 98362 ; _ 1111 I 3 MAR —7 Ne4 __. L_,...°r �i`=G WT813BRY.REP/t 12602gbs P.O.Box 2876•Port Angeles,Washington 98362•Telephone:(360)452.0186•Fan(360)4824118 eats bahea@tertforwartLeom CONTENTS 1.0 INTRODUCTION 1 2.0 METHODS 2 3.0 WETLAND DELINEATION RESULTS 4 3.1 Existing Conditions 4 3.2 Description of Wetlands 4 3.3 Land Uses and Habitat Values 6 3.4 Wetland Types and Buffers 6 4.0 CONCLUSIONS AND RECOMMENDATIONS 8 4.1 Conclusions g 4.2 Recommendations 8 5.0 REFERENCES 10 6.0 FIGURES 12 Figure 1. Location Map 13 Figure 2. Vicinity Map 14 Figure 3. Wetland Delineation Map 15 7.0 TABLES 16 Table 1. Upland and Wetland Vegetation 17 Table 2. Site Soils 18 APPENDICES 19 Appendix A- Wetland Data Forms 20 WT813BRY.REP/1 12602gbs 2.0 METHODS Wetlands were delineated in the field based on field methods recommended in the Washington State Wetlands Identification and Delineation Manual (DOE 1997). Wetland Rating was accomplished according to the Guidelines of the Washington State Wetlands Rating System (Western Washington) (DOE 1993). Methods were essentially those recommended by the U.S. Army Corps of Engineers for Routine On-Site Field Method of delineation of wetlands (U.S. ACOE 1989). Guidelines and requirements of the Jefferson County Critical Area Code were applied as applicable (Unified Development Code, Section 3, Land Use Districts 2001). Wetland plants were primarily identified in the field, with subsequent collection and keying when necessary. Plants were identified using the following sources: Cooke 1997 Guard 1995 Pojar and Mackinnon 1994 Hitchcock and Cronquist 1973 Lyons 1997 Taylor 1995 Keying of plants using magnifying lenses and dissecting microscope was used as necessary. Determination of wetland indicator status utilized regional keys published by U.S.Fish and Wildlife Service (U.S. FWS 1988). Soils were determined through field examination. Soils were dug or augured to depths of up to 18 inches using a wetland shovel, a 24" soil probe and a standard augur. Soil consistency was determined by feeling for grain size and texture. Soil moisture was determined at that time. In the event of saturated conditions in the hole, depth to standing water was noted. Soil color was determined through comparison of field samples with standard Munsell Color Charts (Munsell 1994). Soil was also examined for presence of mottles, gley and other indicators of anaerobic soil oxidation. Hydrologic conditions were determined through examination of topographic relief and drainage patterns. Soil moistness was determined by hand as indicated above and in the event of standing water, depth to standing water was noted. Field surveys were carried out by Dr. Shea on October 31 and November 14, 2002. These surveys included identification of plants, wetland habitats, soils and hydrology. WT813BRY.REP/112602gbs 2 Wetlands were determined based on the Routine On-Site Field Method used by Washington Department of Ecology and the U.S.Army Corps of Engineers. Wetlands were determined by a combination of vegetation, soil and hydrology indicators. Specific transect and quadrat points were sampled along apparent wetland edges. Various points were sampled for vegetation, soil and hydrology in order to determine wetland boundaries. Appendix A contains data forms for one typical sample point from each of the delineated wetlands. Wetlands were staked in the field by 24 inch wooden stakes. Wetland boundaries in forested areas were indicated by use of "Wetland Delineation Boundary" flagging tape placed at appropriate points in trees and shrubs. All boundaries were staked and/or flagged every 20-25 feet. Wetland buffer zones were determined based on field measurements and regulatory requirements and were staked in the field and marked with orange and black striped flagging every 40-50 feet. WT813BRY.REP/112602gbs 3 Soils Soils have been mapped in the area by the U.S. Soil Conservation Service (SCS 1975). Soils at and near the Site have been mapped as the Triton-Hoodsport Association. These are moderately well drained, very gravelly soils underlain by compact glacial till or basalt. The specific soil types mapped at the Site are Belfast silt loam (Bg) on the eastern portion of the property and Lummi silt loam (Lu) on the western portion. Belfast Fine Sandy Loam (Bf) consists of well drained soils of flood plans. These soils formed in alluvium, generally in coastal forests. These soils are associated with Lummi and Swantown soils. The upper 4-8 inches is fine sandy loam. Below this is a layer of sandy loam with gravels and cobbles throughout. This soil type appears to be mixed in the field with Belfast Silt Loam (Bg) and the profiles range from fine sandy loam to silt loam. These soils are somewhat acidic. The soil is well drained with moderate permeability, slow runoff and little or no erosion hazard. Lummi Silt Loam (Lu) is a nearly level soil found on river estuaries adjacent to tide- flats and within 2-4 feet of the average high tide. The typical profile is 5-10 inches of dark brown silt loam underlain by 8-17 inches of dark gray silt loam, becoming very dark grey to olive silt loam to depths of sixty inches. This soil is poorly drained with moderate permeability. Runoff is slow to ponded and erosion hazard is slight except along stream channels. The outer portion of the property is designated as Tidal Marsh (Td). These soils are nearly level, extremely wet, salty or brackish areas within the overflow limits of the high tide. Soil materials are deep deposits of heterogeneous river alluvium that are continually saturated with salt water. The materials are clays and silty clays, gray or greenish in color and mottled, with little or no upland soil formation. On-site investigations by Westech Company indicate that the mapped soils correspond well with soils found on the Site, although there are areas which appear to be characteristic of Belfast silt loam (Bg) which is also found to the south of the property. Several perc holes have been dug with a backhoe by a local contractor. JSF Engineering (John Fleming Engineering of Port Angeles) is performing drainfield design based on results of these tests). Soils in the wetland have an organic surface layer, underlain by soils which correspond well to the Lummi soil description, grading eastward to clay soils typical of tidal marsh. There are several small channels in the wetland which operate as tidal sloughs, bringing nutrients to the wetland plants. These channels can be expected to erode and change location with time as is standard in wetlands of this type. WT813BRY.REP!112602gbs 5 Hydrology The Site hydrology in the wetland is controlled by tidal influence from Hood Canal. Several sloughs enter the Site and one large slough is located at the north and west sides • of the Site. This slough brings brackish and salt water to the saltmarsh at high tides, and fresher water from upland runoff during low tides. Saturation in the soils is fairly close . , to the surface, generally at 12-24 inches depth in the wetlands and roughly 24-36 inches in the nearby uplands depending on ground elevation and distance from Hood Canal. Wetland soils were found to be moist at or near the surface, generally wet at depths of 6- 12 inches and sometimes saturated at depths below 12 inches, depending on location. 3.3 Land Uses and Habitat Values Land uses at the Site include a saltmarsh wetland in nearly natural condition adjacent to a property containing a former residence. The residential portion of the property has been cleared and test pits have been dug in the upland area, which contains some shrubs and native trees near the edge of the wetland and a few non-native trees in the upland. The wetland extends outward from the upland-wetland transition for roughly 500 feet. This is a large area which is attached to other natural marsh areas to the north and south. Tidal sloughs cross these marshes, although some areas have been altered by ditching on the east side of the property and to the north and south of the property. These sloughs and the wetland are used by native fish species, and shellfish probably including juvenile salmon, and several species of clams. The wetlands are utilized by amphibians, birds and small mammals typical of such saltmarsh areas. Elk are known to utilize the property during the spring and summer and early fall seasons. The wetland area probably has a moderate to high habitat value based on the number and type of species expected to be present and the general lack of disturbance. The wetland area is mostly undisturbed on the property, however, culverting has occurred over the tidal slough to the north and ditching occurred near the upper wetland boundary at some past time. 3.4 Wetland Types and Buffers The wetland found at the Site is part of a large wetland more than 20 acres in size which occupies the Hood Canal shoreline near the mouth of the Dosewallips River. The area is relatively undisturbed except for adjacent residential uses. This wetland therefore fits the criteria for a Category I wetland according to the Jefferson County Unified Development Code. WT813BRY.REP/112602gbs 6 • The wetland buffer for a Category I wetland is 150 feet (JCUDC 2001, Section 3.6.9). This buffer has been flagged in the field with yellow-black striped flagging tape. Distance from the wetland edge was measured vertically to determine buffer location. Measurements were made from wetland delineation stakes, along the wetland edge, extending from the southern property line of the Site, around three sides of the former residential area. The buffer location is shown in Figure 3. WT813BRY.REP/112602gbs 7 Replanting of all areas not covered with impermeable surface (driveway, house, sidewalk etc.) should be accomplished upon completion of construction. Native grasses native shrubs or other native plants should be established in all areas within 150 feet of the wetland immediately upon completion of construction. Any bare areas which must be left for more than a few days during construction should be covered with an erosion/siltation control barrier such as jute netting, or equivalent. Implementation of these recommendations will, in our professional judgement result in no significant environmental impacts to the wetland as a result of the proposed project. WT813BRY.REP/112602gbs 9 5.0 REFERENCES Allen, J.S. 1978. Survey of Portion of Government Lot 5, Section 35, T26N, R2W, W.M. Submitted to Jefferson County. Port Townsend, Washington. Cooke, S.S. 1997. A Field Guide to the Common Wetland Plants of Western Washington and Northwestern Oregon. Seattle Audubon Society. Seattle, Washington. Guard, J. 1995. Wetland Plants of Washington and Oregon. Lone Pine Publishing. Renton, Washington. Hitchcock, C.L.and A. Cronquist. 1973. Flora of the Pacific Northwest. University of Washington Press. Seattle, Washington. Jefferson County. 2001. Jefferson County Unified Development Code . Section 3, Land Use Districts, Subsection 3.6 -Wetlands. Department of Community Development. Port Townsend, Washington. Lyons, C.P. 1997. Wildflowers of Washington. Lone Pine Publishing. Renton, Washington. Munsell Color. 1994. Mansell Soil Color Charts. GretagMacbeth. New Windsor, New York. Pojar, J. and A. MacKinnon. 1994. Plants of the Pacific Northwest Coast. Lone Pine Publishing Company. Redmond, Washington. Taylor, R. 1995. Northwest Weeds. Mountain Press Publishing Company. Missoula Montana. U.S. Army Corps of Engineers (ACOE). 1989. Federal Manual for Identifying and Delineating Jurisdictional Wetlands. U.S.Government Printing Office. Washington, D.C. U.S. Fish and Wildlife Service (FWS). 1988. National List of Species that Occur in Wetlands; Region 9 (and Supplement). Biological Report 88(26.9). Portland, Oregon. U.S.Geological Survey. 1985. Quadrangle Map of Brinnon, Washington. 1:24,000 Scale. Published 1953, Photorevised 1985. Boulder, Colorado. WT813BRY.REP/112602gbs 10 U.S. Soil Conservation Service (SCS). 1975. Soil Survey of Jefferson County Area. Washington. U.S. Department of Agriculture. Washington, D.C. Washington Department of Ecology (WDOE). 1993. Washington State Wetlands Rating System: Western Washington. Second Edition. Publication # 93-74. Olympia, Washington. Washington Department of Ecology (WDOE). 1997. Washington State Wetlands Identification and Delineation Manual. Publication #96-94. Olympia, Washington. WT813BRY.REP/112602gbs 11 6.0 FIGURES WT813BRY.REP/112602gbs 12 r- \ NATIONAL S , Jack (r 1 :- .. / Jastuox . ii -0 Mr.TURNER ::� ,44 3I f _, Iw'awaP 1 _ (Right r iart `pagE� Ceud' 9 Tun er Cri ....,....„ '',?';',:'-;-''''''.- ::' f c FOREST —'- - - GREEN HILL ,,. 'h i x»o i if DOSEWALLIP$ 7 `. :s SY� 30• 29 • j 1 ' Y • Q4 �� '�4 ...__-.______ ..... ? h E .,yet - a Q - BD P ' °y 34}.Jae g�4` Brinson a:.,=P•:,: : 3' 3� j is��'{3 '..0 as r '< . :*,:,:Z!,:•:'.:::..,.":„. '';' U 4 n4e M \. .. MATNCWWS DOSOWa//tpS I f ' SUM Park .. ; 1 x ' "}Sl V' T OLYMPIC as as-*4 wok ''; s � { c -74 NATIONAL ,. -. .- \ /1, ,-_ a . '.` l kr il"p Gf� 16 n eye— �fft "3 ', ral_a..-,,,,,,-,,4,,.:,,,:c_,,. FOREST 1 nk l.ii,r' _( f 2n 1., s, W' a,a�1 3w �': w. t.oA `1&'. TES ; r 4Rerr_. !9 TOT `t _� „n,s'` ;x'. , _ Figure 1. Location Map Westech Company, 2002 • • 1 ,\\\�� *1\`= :\�� ;li, '' `_�`LL \` \\\;\', , ^1.�f I Greek _._�__s re r, �f / • C. s. 1 f.,/, ....;_::.- .,,,,,„•-•_-_-•,.......„.....\--‘-, . ,...., a;, \•\,. . N.,, \\:).'••••\)•,,, I.,1 il,),!!.!..ts,381:, I . 5;1/ „,,,,...9 .? I ),r: ///i i"....; 'c../. `.., l'.• -------ze '''''' '''--: -7' i al‘‘'''X \\„._ i ir/y/filt.i:, -•'-:_. --- //9)) di y ,/..oiesii) : :. • / .11, 10,, ,•,...N.__ ,r / i,)' r,yi t'"',./i ! :.;, : ; !,:, . -,c / ji I/ i.1 1 i• •(. .: ; ' -ri rJ� !11—r r 2$` /- t\ `^----•. �,•oo� / /// .i� ' . Rock •�^ �' - � \\\�; /� 9 'I ern 5007 --tee \ „ • t 35 \ » ' \` •( • =4..__. ;f. roject Site \3N. , \ I lJ - <•`•• ;. 'Brirnon' I_!` ,, ' •gs•• \ ' \�:' : B.'!21 -SYiovash Pt ‘‘..\\ -\ l •.� i b03EWALLIPS i MIL a 4) 4. ,. • •• -- \ , --. \ : ' . ."- OF •-!;!"', _—, '"`' -• ` \- .,` r"� `_.eas i'1 '' tt ;t_:%;>' n 1. •:-.......I.*:....,,F!"!„...i'......._... . .-....--------)'—/... 1 el-t..1 1....: f.:::.••?'-'/P...73 S I CI: If I 1i r../I—7.../"•-•-• •09—/(.1—,•2 i.711!! :7;,•:.::?' : /,/ ji g. ; ' � �J (�._ _, `ter °. .. y '\ �Jf Jar, a ...;,,,....,,_,.../.,.....,...„....,72.. .... . ,. ,.\......_:.:_r,,......_,, s.....„_.:__„, /, . \.,,, ..., ...,,,... . ,„.. , e „._.:,_. • ,,,,,,y)) ,, / ri; .• ____. •-„.._,„_;-..,,,,-;---,2:::__,:i5e,_ , Figure 2. Vicinity Map Westech Company, 2002 7.0 TABLES WT813BRY.REP/112602gbs 16 TABLE 1. UPLAND AND WETLAND VEGETATION** Common Name Scientific Name Indicator * UPLAND AREA bluegrass Poa pratensis FAC ryegrass Lolium perenne FACU plantain Plantago major FACU+ dandilion Taraxacum officinale UPL red clover Trifolium pratense FACU white clover Trifolium repens FAC wood rose Rosa gymnocarpa FACU dovefoot geranium Geranium molle UPL western red cedar Thuja plicata FAC holly Ilex aquifolium FACU blackberry Rubus procerus FACU swordfern Polystichum munitum FACU WETLAND AREA soft rush Juncus effusus FACW seaside plantain Plantago maritima FACW+ pickleweed Salicornia pacifica OBL seaside arrowgrass Triglochin maritima OBL saltgrass Distichlis spicata FAC+ spearscale Atriplex patula FACW short-awn foxtail Alopecurus aequalis OBL Douglas aster Aster subspicatus FACW * Indicators are FACU=facultative upland plants (prefer upland soils), FAC=facultative plants (may be upland or wetland), FACW=facultative wetland plants (prefer wetland soils and hydrology), OBL=obligate wetland plants, require wetland conditions. ** The Site also contained a number of ornamental trees including apple trees and eastern maple trees. Lombardy poplars occupy an area just off-site to the south. WT813BRY.REP/112602gbs 17 • TABLE 2. SITE SOILS Location Soil Texture and Color Depth (in.) C/V** SV-1 (wetland) dark brown clay 0-6" 3/1 silty clay (dark brown)* 6-12" 3/2 clay (dark grown)* 12-18" 3/2 clay/ w/ mottles 18"+ 3/1 Standing water 20" SV-2 (upland) silt loam (gray brown) 0-6" 4/2 silt (med. brown) 6-12" 3/2 silty clay (lt. brown) 12-18" 4/3 clay (brown) 18"+ 3/2 damp soil at 12 - 18" * mottles present at moderate density or greater ** C/V =Chroma Value as given by Munsell Soil Color Charts, all values from 10YR chart. WT813BRY.REP/112602gbs 18 APPENDICES WT813BRY.REP/112602gbs 19 DATA FORM 1 Routine Wetland Determination (WA State Wetland Delineation Manual or 1 1987 Corps Wetland Delineation Manual) Project/Site: ov.,err 1 �•- ' d o-2. `)5.� 'a �J Date: pl,y/oz- Applicant/owner: / L,^,s C.r.-u-� .g,,. County: ,S ,C,„_e_j. State: wAt Investigator(s): 17 r. 6- S/T/R: i 7-z6 QZ Lv Do Normal Circumstances exist on the site? yes Community ID: Is the site significantly disturbed(atypical situation)? AV no Transect ID: fc- i Is the area a potential Problem Area? yes CD Plot ID: 5 v— 1 VEGETATION Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator , 645i- - (j. `-;�•i,f,,e �pr�;s� � (�f_-•e e 7 4(c• Leef 4(<5 Zi HYDROPHYTIC VEGETATION INDICATORS: %of dominants OBL, FACW, &FAC: 4) Check all indicators that apply &explain below: Regional knowledge of plant communities V Wetland plant list(nat'l or regional) OTHER Physiological or reproductive adaptations Morphological adaptations Technical Literature ✓ Wetland Plant Data Base Hydrophytic vegetation present? e no Rationale for decision/Remarks: d - HYDROLOGY Is it the growing season? yes Go; Water Marks: yes no Sediment Deposits: yes no Based on: Drift Lines: yes no _Drainage Patterns: yes no Dept. of inundation: Zc3 I.inches Oxidized Root(live roots) Local Soil Survey: yes no Channels<12 in.yes no Depth to free water in pit: "inches FAC Neutral: yes no Water-stained Leaves: yes no Depth to saturated soil: 1Z-i "inches Check all that apply &explain below: Other: Stream,Lake or gage data: Aerial photographs: Other: ( Wetland hydrology present? *VP no • Rationale for decision/Remarks: s ��., � L (�,, r-2.,o`�" s��-_ ----"Nlpr\<;,. OILS Map Unit Name �.y.,,s,,,. ,' t. -r; ` > M,4..�j4,1, Drainage Class_ (Series &Phase) Taxonomy (subgroup) �:(y�l�a.{,�, Field observations confirm ► No mapped type? Profile Description Depth Horizon Matrix color Mottle colors Mottle abundance Texture, concretions,(inches) (Munsell (Munsell size&contrast • structure,etc. Drawing of soil moist) moist) profile �� (match descrintionl v-6 A "�- .�/i bra..� • �;r 64.'e IA- ., .,.../,........ ..c,_IL " ,.....ie b,...._44.,,. .,.....-6, ii,,e,,,..s....„. s --- 4] (47 1.�14 ate,. ' I / T J. k+sv.� ___. �_ _ I • I IHydric Soil Indicators: (check all that apply) I. Histosol Histic Epipedon Concretions Sulfidic Odor High Organic Content in Surface Layer of Sandy Soils 4 I Organic Streaking in Sandy Soils I Aquic Moisture Regime ,./ Listed on Local Hydric Soils List ,/ Reducing Conditions Listed on National Hydric Soils List ✓ Gleyed or Low-Chroma Colors Other(explain in remarks)I Hydric soils present? no Rationale for decision/Remarks: z _-4e- Vetland Determination (circle) -Iydrophytic vegetation present? CP no [ydric soils present? ikl no Is the sampling hydrology P n point yes no Wetland h Y gy present? eJ no within a wetland? "ationale/Remarks: NOTES: DATA FORM 1 Routine Wetland Determination (WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual) Project/Site: ►_� , ;x1 ��A 6e7:. Date: Applicant/owner: � -br�ay �...�,. • County: State: w.4 Investigator(s): , S/T/R: �-t �2.6.l L1/ Do Normal Circumstances exist on the site? yes no Community ID: Lam_!Q Is the site significantly disturbed(atypical situation)? no Transect ID: - Is the area a potential Problem Area? yes Plot ID: S,._- VEGETATION Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator PA e- d N f g9=Gt. N w z Ni`" I'' ' i tt �!i. >! ,✓1-. 1"__X'�s�-�� /-I-�' /Ll L?_- HYDROPHYTIC VEGETATION INDICATORS: %of dominants OBL,FACW, &FAC: i -�� Check all indicators that apply &explain below: Regional knowledge of plant communities - Wetland plant list(nat'l or regional) OTHER Physiological or reproductive adaptations Morphological adaptations Technical Literature f Wetland Plant Data Base Hydrophytic vegetation present? yes no Rationale for decision/Remarks: la - 47 C A - • HYDROLOGY Is it the growing season? yes ( )Water Marks: yes Sediment Deposits: yes Based on: Drift Lines: yes no Drainage Patterns: yes Coj Dept. of inundation: inches Oxidized Root(live roots) Local Soil Survey: j no Channels<12 in.yes CE75 Depth to free water in pit: — inches FAC Neutral: yes rCJ Water-stained .�-oT�..-,►� — %C o�`� Leaves: yes io Depth to saturated soil: inches 3u Check all that apply &explain below: Other: Stream,Lake or gage data: Aerial photographs: Other: Wetland hydrology present? yes Rationale for decision/Remarks: &ale a�f - --,-- ' SOILS Map Unit Name d-E xt- (Series & Phase) Drainage Class Taxonom (subgroup) F Field observations confirm es No P) ,'Q�.to,.,...., mapped type? Profile Description Depth Horizon Matrix color Mottle colors Mottle abundance Texture, concretions, Drawing of soil (inches) (Munsell (MunselI size&contrast structure, etc. moist) moist) profile ~ - (match description) t �'4' ram- '`_ d-6 6` Z.r1 [l 11�r�cr._ —^ li`� G3r�,lit 6 _ z tY I � i IHydric Soil Indicators: (check all that apply)l I Histosol Concretions Histic Epipedon High Organic Content in Surface Layer of Sandy Soils 141 ISulfidic Odor Organic Streaking in Sandy Soils Aquic Moisture Regime Listed on Local Hydric Soils List Reducing Conditions Listed on National Hydric Soils List V Gleyed or Low-Chroma ColorsS Other(explain in remarks) - I Hydric soils present? yes ( Rationale for decision/Remarks: `=� .3<zit- e � r* _ . zlG �rz- I -1zo rt -Kj Wetland Determination (circle) "Iydrophytic vegetation present?Iydric soils present? yes yes Is the sampling point yes no Wetland hydrology present? yes �rra� within a wetland? ^.ationaleJRemarks: (` `ram' i _r`t4 -�- NOTES: ill? SEP/ 77J7 ECEBVE Construction Storm Water Pollution Protection Plan Keith and Tammy Berry Residence Case#MLA 03 00467 DEPT OF COMMUNfTI pEV OpMENT Element 1 The clearing limits will be marked with yellow flags as indicated on the storm water site plan. Element 2 The construction access IQ the existing gravel driveway as shown on the storm water plan. Element 3 Flow rates will be controlled during construction utilizing the permanent infiltration area to the north of the home site protected by filter fabric fencing on clearing limit line as shown on the storm water site plan. Element 4 Storm water run off during construction will flow northerly through the filter fabric fencing onto the permanent infiltration area as shown on the storm water site plan. Element 5 Soil stock piles from construction will be stabilized from erosive forces using plastic sheeting and straw where necessary. Element 6 Subject property has a minimal '/2 degree slope to the north northwest. Erosion will be minimized mostly by maintenance of the grass. Element 7 Storm drain inlets will be filtered using straw bales where necessary to filter and remove sediments. Element 8 On site temporary conveyance channels will be stabilized to prevent erosion. Element 9 Any potential pollution will be handled in a manner that will not cause contamination of storm water. Element 10 De-watering flow control will be primarily infiltration on site such that flows will not cause erosion or flooding of receiving waters. Element 11 APPROVED Temporary&permanent erosion& sediment control BMP's will&TQRWTER PLAN Element 12 The project will be managed by Keith and Tammy Berry, oners. SEP 3 0 21103 * JEFFERSON COUNTY DEPT.OF COM 1 DE ELOPM• T SIGNATURE: � i 10/02/2003 08:36 FAX 3603840973 11002 Oct 02 03 OG:28a Craig•nfield 509-49 3133 P- 2 5070 Pacific Highway .. Ferndale,Washington 9B248 Civil. Structural and Foundation Engineering • fir. I I i -• C}ctober 1,2003 C L' b,1� L� _I " `,` I \\ Linwood Homes �� 8250 River Road �, -i OCT 2 2003 ,i� Delta,B.C. V4G 1B5 I COUNTY ON C : Berry Residence DEPT. OF JEFFERS EFFERS COMMUNITYDEVELOPMENT 30365 Highway 101 Brinnon, WA To Wham It May Concern: ' It has been brought to the attention of Pinner Engineering, Inc.this structure is • being built in a flood plain_The contractor for the project has added floodgate panels in d It has the foundigoIn�to been that Pinner Engineer review the locations of the panels for any struc asked ral issues. , Upon review, it is found the location of the floodgates does not affect the lateral strength of the foundation.It is required that a minimum of a(3)2x10 hcader/rirnjoist should be present over the openings.This will carry the bearing load over and transfer the lateral force across the openings. If you have any questions regarding this letter,please feel free to call. Sincerely, t Craig Penfield " 1:77 /',� 1 Project Engineer ` `', = it•A-,.., ' r.7 ,,, 4 ;1L 0 s .I'y ' ,s, �GrszS - ,&}`;,^ ,, SJONAL .K EXPIRES 2-13-04 1 OCT - 1 2001 Phone:360-384-S285 Fax 360-384-0973 EQUINEMOM,=AOL-COM 10/02/2003 08:37 FAX 3603840973 12003 nct 02 03 O6:23a Craig of telct 50S-4903133 P- 3 Typical Headers-Over Flood Openings Pagel Pinner Engineering , _ Project 21767 06:16:33 10/02/03 Job: Berry Residence,30365-Hwy 101, Brinnon,WA Designed by:CAP Client Linwood Homes-- - -- - Checked by: -_ Input Data . Check of(3)2x10 SPF No.1/No.2- User Dimensional+t cars None Left Cantilever;None Mni Spam rstir Right Check for repptifee use? Na Tributary Width:t7 Slopec 0 Deed Load:{1 lost Live Loeb:0 psf 5now Load: a • EU1gN_LL Deflection:L/360 Allow.IL Deflection:L240 DOL:1.150 (3 in ) F 875 psi ED;1 d00000 psi F._70 psi e: User Defined Loads i . Load Gazse [Y,ad Dlstance(s)to Load Load at Load at Start End Smart Length ft Of Of plaad Uniform 0' 56" 142-5 snow Condition 1 Unifarn 0' 56" 28S Dead Uni(utm cr 5'6' 1125 Floor Lire Uniform 0' Sr 300 Design Checks Reaction Bendlne-X Shear LL OWL Ti.Daft. in In Marc ValUe to2705.78 803.033 69_018 -0.0534 -0_0779 Altowdble 5737.5 1106.88 80.5 02167 0.325 Si3� � 47 I I 23 tie o Of Mom, � Location CT 9'2 3132" 5'5-314 31-11116' 3'2-11/11r Reactions and Bearing Support Location Mir_Beating Reaction • ft in lb • 0• 1.5 2705_78 - 6-6" 1.5 1995.01 ''-' D 1 'O K'''.i c__ 1 r Self-weight of member is included. 4 Member has an act„a YHua►rable ratio in scan 1 of ti61%. 1 Design is gcHernetl by shear fiAFv. ,\1 OCT - 2 2003 Governing load combination is [ Floor Levt9now Condition 1. 1 Maximum hanger forces 2705.78 lb(Left)and 1995.01 lb(Right). l JEFF RSON COUNTY DEPT. OF COMMUNITY OEVEI�OPY:NT Program Vcsswn 82-3/13/20W • • • to u Q tou u u_ 4211 Ws-r TL- F ail, <16)1/4 7 L/0 i 1-; 1 a TYP.PERIMETER FOUNDATION: 1 ION. 1 7 _ i —I I 4 8" CONCRETE WALL I Y 18"x8" CONCRETE FOOTING I o l- '- ^ (SEE DETAIL 'G' SI-IT. 7) I I I a- u W rx° U wN I N - \FAdE - - o I- 1 _I > a r �Z VI r- oc 71) cm N TYP.INTERIOR SUPPORT(U.N.0): Q I A l I §'") 6x6 POST 1 I , ° W 8"x8" CONCRETE PIER EXPANDIE FOOTING FTG-02: TJI FL N r3o'xxIo' CONC. FOOTING I „ " „ f1NG: WITH 3 ROWS 10M (#4) 3q x3q xl2 CONC. FTG. �Q I (SIZE NC. FTG. ` REBAR EACH WAY 1 WITH 4 ROWS I5M ( 5)o f �5M (#5) J a . L (SEE DETAIL 'H' SHT. 7) D REBAR EACH WAY ( \FA AY 7 130"x30"x10" — — BEAM , 141_0"" L 1 r r b POCKET - ' 4 xid NA -LAM4BEAM 4 2c10 NAIL-LAM L E.AM 4- c10 , ,IL-LAM BEAM 4-2x10 NAIL-LAM BEA i, I Fes-- = - 1_ - — � _ nys wt. L ° \F._r-BEAM KET J L -.1 �J FACEai ,TLIL (SEE CET. 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