South Fork Nooksack: Cavanaugh Island Restoration
#10-LNR-RCO1806 #10-LNR-RCO1806
Organization WRIA 1 Salmon Recovery Board (LE)
Status Completed (Design and Permitting)
Schedule Start Date: 10/7/2010 End Date: 10/24/2012
Priority 1
Category Category: Non-Capital Projects
The Lummi Natural Resources department developed a 100% design for the Cavanaugh Island Restoration project, located at RM 16.6-17.0 in the South Fork Nooksack River. The Cavanaugh Creek reach includes the greatest length of side channel habitat in the South Fork watershed and is a known cool water tributary. The main habitat limiting factors in the South Fork Nooksack are elevated summer water temperature, loss of habitat diversity, and a loss of holding and rearing habitat for Spring Chinook. Summer water temperature in the river routinely exceeds 20°C (and has been observed to be higher than 24°C); the South Fork has been listed as impaired for water temperature by the State of Washington. Tasks completed:1) alternatives analysis and outreach to landowners and local stakeholders 2) 30% preliminary design for the preferred alternative with design report and cost estimates, to include consultation with permitting agencies, and 3) final design. The project objectives included increasing habitat quantity, improving conditions for spawning, and increasing thermal refugia availability. To meet these objectives, the final design included six engineered logjams and 9 habitat structures in the side channel.
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Project objectives include increasing habitat quantity, improving conditions for spawning, and increasing availability of thermal refugia. Measure: Design
Goal: 1 Each  Actual: 1 Each
Project Cost
Proposed Funds $0
Allocated Funds $84,204
Expended Funds $84,204
Balance $0
Puget Sound Acquisition and Restoration$84,204

Congressional Districts:1
US WA WRIA:1 Nooksack
Legislative Districts:39
Puget Sound Process Units:Delta NKS
Steelhead PCH:High
ESA Listed Salmon/Steelhead Status:Not Warranted
ESA Listed Salmon/Steelhead DPS/ESU:Odd Year Pink Salmon - Not Warranted
Bulltrout Management Unit:Puget Sound
ESA Listed Salmon/Steelhead DPS/ESU:Puget Sound Steelhead - Threatened
ESA Listed Salmon/Steelhead DPS/ESU:Puget Sound\Strait of Georgia Coho Salmo
PSP Action Areas:San Juan Islands
USGS Level 5 Hydro Regions:South Fork Nooksack River
ESA Listed Salmon/Steelhead Status:Species of Concern
US WA Township:T36-0N R5-0E S02
ESA Listed Salmon/Steelhead Status:Threatened
USGS Level 6 Hydro Regions:Upper South Fork Nooksack River
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