Thatcher Bay Assessment and Design Study
#05-1518 #05-1518
 Planning and Feasibility Planning and Feasibilty Projects Thatcher Bay Assessment and Design Study
Organization San Juan County Lead Entity for Salmon Recovery
Sponsor Skagit Fisheries Enhancement Group
Status Completed
Schedule Start Date: 2/1/2006 End Date: 5/26/2011
Category Category: Planning
DESCRIPTION
In the early 1900s a lumber mill operated in Thatcher Bay located on the southeast corner of Blakely Island. Wood waste from the mill was deposited on the beach and in the intertidal area around the mill. Mill operations ceased in 1942, but wood waste contaminated sediments still cover approximately 1.8 acres. The Assessment phase of this project was completed in 2008. The Assessment looked at historic and current conditions, assessed the impact of wood waste in Thatcher Bay and examined restoration options. Sediment volume of the site was determined by evaluating the extent and depth of the wood waste by taking sediment cores. Additionally, pilot studies were conducted to characterize in situ sediment redox, organic composition, and sulfide impacts to nearshore flora and fauna. The multidisciplinary investigation identified the removal of wood waste from a water-based platform as the preferred alternative. Approximately 12,900 cubic yards of wood debris material will be removed from the beach at an elevation of approximately 8 feet above mean lower low water (MLLW) to depths in the nearshore of approximately -8 feet below MLLW. The wood waste contaminated sediment will be replaced with clean sediment suitable for forage fish spawning after removal of the wood waste is complete. A 30% design and cost estimate were completed for the preferred restoration option. A Cultural Assessment was completed and JARPA application submitted to local, state and federal agencies. As of the project end date the permit approvals received are: DMMO Suitability Determination, SEPA determination of nonsignficance, Shorelines exemption , and HPA issued. At the Army Corps, due to the ESA listing of three species of rockfish an individual ESA consultation was required. A Biological Evaluation is currently being prepared to meet this requirement. Once this ESA consultation is completed the Army Corps can proceed issuing their permit. In the mean time, SFEG has been actively seeking implementation funds and has authorized our consultant to proceed with final designs. Additional SRFB implementation funds have been secured, however additional funds are still needed. Ultimately, once implemented the Thatcher Bay Nearshore Restoration project will eliminate toxic sulfide contamination by removing wood waste, and restore nearshore intertidal and sub-tidal habitat suitable for forage fish spawning and rearing, specifically Surf Smelt and Sand Lance. The project will also improve foraging and rearing habitat for salmonids including ESA listed Chinook salmon, steelhead trout, and bull trout. Improved benthic conditions will increase the potential of establishing intertidal flora and fauna such as eelgrass.
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FUNDING SOURCES
FUNDING ENTRIES FROM GRANT PROJECT AGREEMENT
TypeDateFunding OrgFunding ProgramMatchAmount
Requested09/19/2005Skagit Fisheries Enhancement GroupMatch$21,000.00
Requested09/19/2005Recreation and Conservation Office (RCO)Salmon State Projects$115,550.00
Allocated03/16/2009Skagit Fisheries Enhancement GroupMatch$28,650.00
Allocated03/16/2009Recreation and Conservation Office (RCO)Salmon Federal Projects$162,904.00
Spent05/25/2011Skagit Fisheries Enhancement GroupMatch-$28,650.00
Spent05/25/2011Recreation and Conservation Office (RCO)Salmon Federal Projects-$162,904.00
Grant Project Agreement Totals Proposed Requested Allocated Spent Balance
Not entered $136,550.00 $191,554.00 $191,554.00 $0.00
OTHER FUNDING (Funding that is NOT in a grant project agreement)
TypeDateFunding OrgFunding ProgramMatchAmount
Other Funding Totals Proposed Requested Allocated Spent Balance
Grand Totals Proposed Requested Allocated Spent Balance
PRIMARY SPONSOR
PROJECT CONTACT
ALT PROJECT CONTACT
PROJECT MANAGER
PHOTOS

 
LOCATION
Chinook-Pop (ESU):Chinook-Puget Sound, Threatened
Chum-Pop (ESU):Chum-Puget Sound/Strait of Georgia, Not Warranted
Coho-Pop (ESU):Coho-Puget Sound/Strait of Georgia, Species of Concern
County:San Juan
HUC12:Lopez Island (171100030600)
HUC8:San Juan Islands (17110003)
Lead Entity Area:San Juan County
Legislative District:40
Pink-Pop (ESU):Pink-Odd Year, Not Warranted
Puget Sound Action Areas:San Juan Islands
Salmon Recovery Regions:Puget Sound
Sections:04
Steelhead-Pop (ESU):Steelhead-Puget Sound, Threatened
Township:T35NR01W
Watershed Administrative Unit:Blakely Island
WRIA:San Juan
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  APPLICATION FINAL 
PLANNING METRICS
Area Encompassed (acres) (B.0.b.1)
1.80acres
Miles of Stream and/or Shoreline Affected (B.0.b.2)