10-105 - King Conservation District No 9 - Duwamish Gardens Grant Funding

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6 l't 1--\-• 1 iK raqx,, 0 P Member Jurisdiction g� eq WRIA Forum Grant Program King Conservation District Grant Application Project Title: Duwamish Gardens Estuarine Restoration 2010 Applicant: City of Tukwila I Contact: Ryan Larson Principal Partners (if any): None Title: Senior Stormwater Engineer Address: City of Tukwila Public Works 6300 Southcenter Blvd. Tukwila, WA 98188 Total Project Cost: $240,282.34 WRIA Funding X Jurisdiction Funding X KCD Funding Requested: $52,929.34 Phone: 206 431 -2456 WRIA 9 Forum funding: $50,000 Jurisdictional funding: $2,929.34 Project Start Date: 12/15/2010 Fax: 206- 431 -3665 j Project End Date: 3/29/13 E -mail: rlarson @ci.tukwila.wa.us 1. Project Description provide a brief description of the project that summarizes what you will do, how you will do it, and why you will do it. Consider the following in the answer to this question: what pressing need will be addressed by the project or what promising opportunity will be capitalized on? Who or what will benefit or be positively and negatively affected? This grant will help pay for the design and permitting of an estuary restoration project on the Duwamish River in Tukwila In the future, construction phase, the City of Tukwila will create substitute shallow water habitat on a 2.16 acre site (and on adjacent Washington State aquatic lands) on the right bank of the Duwamish River immediately downstream of river mile 7 0. The project site is in the high priority "transition zone" between fresh and salt water, which provides the appropriate range of salinities for juvenile Chinook and chum to transition to salt water Off channel and shallow water habitats in this stretch of the Duwamish will provide opportunities for juvenile fish to move out of the main channel to habitats where they can feed and rear Longer residence times in the estuary allow for larger, healthier smolts prior to ocean migration, thereby increasing survival rates. The property is among the largest remaining pieces of lightly developed sites for habitat restoration remaining in the Duwamish corridor The new habitat will be created by excavating 55,000 cubic yards of material to establish approximately 2 0 acres of shallow water mudflat and marsh habitat and approximately 0.8 acre of uplands planted with native vegetation. When restored, Duwamish Gardens will be the largest off channel habitat between the Codiga Farms restoration at river mile 8 5 and North Wind's Weir restoration at river mile 6 4 This project is nearly identical in purpose and design to the North Winds Weir estuary restoration, another project supported by the Conservation District The project will provide another viewpoint on the river arc, ecs from the popular Green River I r ril The viewpoint will include interpretive signs on the pre contact use, historical, and ecological features Member Jurisdiction WRIA Forum Grant Program, Application July 21, 2008 Page 1 of 7