Willow Creek Daylighting Conceptual Design
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Edmonds City of; Willow Creek Daylighting Conceptual Design (#14-1299)
Attachment #184296, Edmonds Marsh aerial
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City of Edmonds will use this funding to develop a conceptual design of an alternative channel alignment across the Unocal property portion of the project. An alternative channel will consider a wider, meandering channel setback from the railroad tracks that would allow for increased channel complexity, reduced velocities and enhanced habitat value. This phase of the project will also assess sediment quality in key locations where interior channels for water conveyance and juvenile salmon habitat enhancement will be located within the marsh, (based on final feasibility findings in planning project 13-1107) and water quality data of freshwater and stormwater inputs to the marsh. Hydraulic modeling needed prior to moving into design will be completed during this project phase. This includes modeling habitat conditions of the daylight channel configuration for channel depth and temperature, modeling operational criteria and layout of the floodgate, and flows in the daylight channel along Marina Beach Park to assess for potential safety hazards. Lastly, key communications with stakeholders will continue in this project phase, primarily with Washington Department of Transportation- Ferries Division who is slated to be the future owner of the Unocal Property. Deliverables for this project will meet all requirements of Manual 18: Appendix D-1 Conceptual Design Deliverables. In addition, project deliverables will include a Landowner Acknowledgement Form from WSDOT-Ferries and a report of negotiations between the City and WSDOT-Ferries that includes an MOU between these two parties clearly stating the preferred alternative channel alignment across the Unocal property.
The overall goal is restoration of Edmonds Marsh, a remnant barrier estuary located in the nearshore within the City of Edmonds (WRIA 8). This future restoration action is being designed to benefit juvenile
Chinook salmon.
This project builds upon previous planning grants (11-1553 and 13-1107) focused on feasibility and conceptual design alternatives for the marsh restoration project.
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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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23
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Township:
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T27NR03E
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Coordinates:
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47.80759644
-122.38749635
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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)
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$199,993
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| | Total | $199,993 |
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
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Local Government
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Edmonds Marsh (#1)
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Property 2 - Unocal Property
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Private
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Edmonds Marsh (#1)
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Property 3 - BNSF Right-of-Way
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Private
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Edmonds Marsh (#1)
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Property 4 - Marina Beach
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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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28.0
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Miles of Stream and/or Shoreline Affected (B.0.b.2)
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0.10
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| Milestone Name | Target Date | Description |
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Project Start
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12/04/2014
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Eligible Preagreement Expenses per Acquisitions Manual 5
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Progress Report Due
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08/15/2015
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Progress Report Due
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01/30/2016
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Progress Report Due
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06/01/2016
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Annual Project Billing Due
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06/30/2016
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RFP Complete/Consultant Hired
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09/15/2016
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Scope and Budget Negotiated.
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Data Gathering Started
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10/30/2016
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Progress Report Due
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12/31/2016
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Annual Project Billing Due
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06/30/2017
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Progress Report Due
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06/30/2017
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Cultural Resources Complete
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10/31/2017
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If Ground Disturbing Activities are necessary.
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Special Conditions Met
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10/31/2017
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Data gathering complete
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Draft Design to RCO
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12/31/2017
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Conceptual Design Deliverables per Manual 18 Appendix D-1
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Special Conditions Met
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12/31/2017
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Condition: Draft Conceptual Design submitted for SRFB review (only if requesting scope change to implement next design phase)
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Special Conditions Met
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06/30/2018
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Final Conceptual Design deliverables (Appendix D-1) submitted
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Final Report Due
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01/18/2019
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Special Conditions Met
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01/18/2019
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Condition: WSDOT MOU and LOA submitted (instead submitted a one-page summary) Compliance Issue Raised.
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Agreement End Date
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01/31/2019
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Project End Date, all expenses must be incurred by this date.
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Final Billing Due
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01/31/2019
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