HomeMy WebLinkAboutPowerlines_DRC_meeting_8-23-2023Jefferson County | August 23, 2023
Dosewallips River, Virtual DRC Meeting
Rocky Brook and Powerlines Reaches
Welcome and Introductions
Agenda Additions (and Eddy Items)
Dosewallips River Project
Floodplain Processes Overview
NSD Team and Background
Natural Systems Design
Eleanor Bartolomeo, Senior Engineer
Tim Abbe, Principal Geomorphologist
Scott Katz, Geomorphologist
Ryan DeKnikker, Habitat Biologist
Torrey Luiting, Ecologist & Project Manager
Resiliency Project Development
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Summary of Last DRC meeting (Feb 2022)
Presented the Dosewallips River Lazy C and Powerlines Reach Resiliency Plan
Recommendations were for aquatic habitat restoration actions to be focused in the Powerlines Reach
Focus on maintaining and supporting freshwater habitat
Room to use restoration tools
Parks and County lands
Private landowners - outreach
Lazy C floodplain development and FEMA no-rise regulations are important considerations
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Last Meeting Summary
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Purpose and Focus
Project Focus
Channel stability to support chinook freshwater egg survival
Channel complexity to support rearing habitat
Both aspects benefit HC summer chum and chinook salmon habitat
Preliminary design and permit application materials
Project Focus:
Focus on freshwater habitat importance for HC summer chum and chinook salmon
Habitat complexity considerations
Build on past studies about channel and floodplain conditions
Updated geomorphic and habitat assessment
Conceptual design ideas, if/where appropriate
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Powerlines Rocky Brook Reach
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Powerlines Preliminary Design Project Area
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Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Rocky Brook Study Area for Assessment
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Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Salmon Recovery Goals and Limiting Factors
Hood Canal Summer Chum Salmon
Designated an ESA threatened species in 1999
Causes of Decline (WDFW and PNPTT 2000)
1. Climate related changes in stream patterns
2. Fishery exploitation
3. Habitat loss
Key Habitat Limiting Factors
Loss of channel complexity
Altered sediment dynamics
Riparian degradation (alteration of large wood cycle)
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Photo Credit: WDFW
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Salmon Use and Limiting Factors
Puget Sound Fall Chinook Salmon
Designated an ESA threatened species in 1999
Causes of Decline (WDFW and PNPTT 2000)
1. Climate change
2. Habitat degradation
3. Fishery exploitation
Key Habitat Limiting Factors (in addition to estuarine habitat loss and degradation)
Floodplain modifications
Channel complexity
Stream flow
Channelization
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Photo Credit: WDFW
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Example NSD Habitat Restoration Projects
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Chinook and Pink salmon beneath Elwha River ELJ
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Click to edit Master title styleCispus River Site B: 1999 Lewis, County, WA
N
Engineered Logjam flow deflectors for bank protection
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
B-1
B-2
B-3
B-4
Black-top
road is
where FR
23 washed
out in 1996
Cispus River
Site B, RM 19
October 1999
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
B-1
B-2
B-3
B-4Cispus River
Site B, RM 19
December 2007
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Structure slows down flow along bank to stop
erosion while creating lots of cover for fish
South Nooksack River, WA
South Fork Nooksack River 2010
Engineered Logjam complex revetments for bank protection
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
2021-2022 ASRP Satsop & Wynoochee Rivers
SatsopWynoochee
Aberdeen
Montesano
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Project Overview
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Project Goals:
1.Increase channel length and
sinuosity.
2.Create multi-thread channels.
3.Increase inundation of side
channels and floodplains.
4.Increase wood loading
5.Increase pools count and quality.
6.Decrease channel migration rates.
7.Increase riparian cover.
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Project Layout – East Fork Satsop River
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Statistics:
1.52 engineered log jams.
2.2,200 logs
3.1.2 miles of river
4.3 private landowners & 1 land trust
5.4 work sites
6.2 construction seasons
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Immediate Geomorphic Effects
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Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Immediate Geomorphic Effects
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Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Overview of Powerlines Scope of Work
Stakeholder Outreach
Field Reconnaissance & Survey
Possible lidar flight
Wetlands & Waters Delineation
Cultural Resources Assessment
Hydraulic & Geomorphic Assessment
Preliminary Design & BOD
Permit Applications
2025 and/or 2026 construction goal
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Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Important Consideration - FEMA Floodplain Zones/Mapping
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Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Overview of Schedule – Powerlines
June – October 2023
Kick off, survey/lidar, recon
Wetlands and cultural field assessments
October-December 2023
Survey processing and basemaps
EC model & hydrology updates
Wetlands and cultural reports
January – May 2024
Hydraulic modeling and preliminary design
Basis of design report
June – October 2024
QC and finalization of design and BOD
Permit application package
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Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Input and Questions (Powerlines)
Input
Questions
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Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Rocky Brook Project Summary
Project Timeline
June 2023 - October 2024 Understand the river in this reach
Human habitats and use
Salmon habitats and use
Characterize existing conditions of the floodplain and in the river
Consider broad range of restoration tools and actions compatible with the reach
Community vulnerabilities
Salmon recovery – freshwater habitat focus
Climate change resiliency
Create concepts and Resiliency Plan to support salmon recovery
Create information to support future grants for community resiliency priorities
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Project Goals
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Rocky Brook Project Summary
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2021 aerial
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Outreach Efforts – Rocky Brook to Jupiter Bridge
November 17, 2022 Brinnon Community Center
July 20, 2023 Brinnon Community Center
Tim Abbe meeting with landowners August 30
Room for more meetings that day – let’s connect!
Planning for field reconnaissance on September 13-14 with willing landowners
Capacity to visit reach again late September if/as needed if more landowner interest in meeting
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Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Overview of Rocky Brook Scope of Work
Stakeholder Outreach & Engagement
Field Reconnaissance & Existing Conditions Assessment
Lidar flight upcoming
Hydraulic modeling
Geomorphic & Aquatic Habitat assessment
More Stakeholder Outreach & Engagement
Reach-scale Collaborative Goals Development
Conceptual Designs – if/where appropriate
Resiliency Plan
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Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Overview of Schedule – Rocky Brook
July – December 2023
Kick off & landowner outreach and engagement
Lidar & reconnaissance site visit(s)
Habitat assessment
Geomorphic assessment
Hydrology & hydraulic modeling
January – May 2024
Outreach and engagement
Reach-scale goals development
Hydraulic modeling and conceptual design
Resiliency plan development
June – October 2024
Outreach and engagement
QC and finalization of concept design and resiliency plan
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Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Input and Questions (Rocky Brook)
Input
Questions
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Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Next Steps – Outreach and Assessments
Landowner outreach and engagement
Field work: geomorphic, wetlands, cultural resources –
mid to late September
Landowner outreach and engagement
Field work to support assessment – mid to late
September
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Powerlines Rocky Brook
Eddy Items
Next Agenda
(September 27th, 4th Wednesdays)
NSD Returns on with updates Nov/Dec
meeting
Jefferson County | Dosewallips River, Rocky
Brook & Powerlines Reaches
August 23, 2023
Contacts
Jefferson County Public Health
Tami Pokorny
TPokorny@co.jefferson.wa.us
Natural Systems Design
Eleanor Bartolomeo, Engineer
eleanor@naturaldes.com
Tim Abbe, Geomorphologist
tim@naturaldes.com
Torrey Luiting, Project Manager
torrey@naturaldes.com
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