Willow Creek Daylighting Final Feasibility Study
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Edmonds City of; Willow Creek Daylighting Final Feasibility Study (#13-1107)
Attachment #162740, EdmondsMarsh_pic1
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Edmonds Marsh is a 32-acre remnant of a historical 100+-acre barrier estuary and marsh complex located a short distance from the downtown core in the suburban City of Edmonds. This project is intended to address the key salmon recovery issue of limited juvenile access to important, yet rare, nearshore rearing habitat. The goal is to identify a design approach to restoration that significantly improves the connection between Edmonds Marsh and Puget Sound to provide juvenile salmon access to this intact estuarine rearing habitat by daylighting the Willow Creek outlet of Edmonds Marsh to Puget Sound. The Early Feasibility Study (completed in May 2013 and funded by RCO 11-1553) indicates this restoration action will provide improved access to 28 acres of estuarine marsh habitat suitable for juvenile Chinook salmon.
The goal of the current project phase, Final Feasibility, is to address the remaining technical and social aspects of the project prior to entering into design work. These aspects include evaluating the marsh outlet configuration that would allow for juvenile salmon access into the marsh while still providing public park uses, evaluate the need for structural measures in the daylight channel to improve fish passage conditions and/or protect infrastructure, determine the need for a self-regulating tidegate to protect from coastal flooding, and assess the availability of the Unocal property for a daylighted channel and planted buffers.
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General Area:
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Edmonds Marsh
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County:
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Snohomish
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Legislative District:
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21
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Congressional District 2022:
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02
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Salmon Recovery Regions:
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Puget Sound
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Watershed Administrative Unit:
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Possession Sound-N Elliot Bay
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HUC8:
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Puget Sound (17110019)
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WRIA:
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Cedar - Sammamish
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Sections:
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26
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Township:
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T27NR03E
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Coordinates:
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47.80670644
-122.38856635
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| Worksite Name | Scope of Work | Actual Planning Cost |
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Edmonds Marsh (#1)
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Conducting habitat restoration scoping and feasibility studies (B.1.b.8), Cultural resources
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$273,988
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| | Total | $273,988 |
Amounts may not be complete
| Worksite Name | | Property Name | Landowner Type |
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Edmonds Marsh (#1)
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Property 1 - Edmonds Marsh City-owned Property
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Local Government
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| | | | Total |
Amounts may not be complete
| | Category / Work Type / Metric | Final |
Restoration Metrics (rolled up from Worksite level) |
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Area Encompassed (acres) (B.0.b.1)
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27.0
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Miles of Stream and/or Shoreline Affected (B.0.b.2)
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0.33
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| Milestone Name | Target Date | Description |
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Project Start
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12/05/2013
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Data Gathering Started
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02/28/2014
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RFP Complete/Consultant Hired
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02/28/2014
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For cultural resources, geotech, or other consultant work.
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Cultural Resources Complete
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06/25/2014
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Plan attached. Monitoring will be incorporated into report for Sect 106 consultation in conjunction with corps permit.
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Progress Report Due
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06/30/2014
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Annual Project Billing Due
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07/31/2014
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Progress Report Due
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12/31/2014
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Draft Plan to RCO
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06/30/2015
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Draft Design Deliverables per special condition
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Progress Report Due
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06/30/2015
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Final Plan to RCO
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10/30/2015
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Final Design Deliverables per special condition
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Final Report Due
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12/31/2015
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Agreement End Date
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12/31/2015
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All expenses must be incurred by this date.
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Final Billing Due
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02/29/2016
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