DESCRIPTION
The proposed project will restore fish access to valuable off-channel rearing habitat in the Harris Creek watershed by removing a road prism that currently acts as a fish passage barrier. Approximately 0.6 miles (3,200 feet) and 7 acres (304,920-sq, ft.) of ponded wetland and stream channel habitat exists above the barrier and will be made accessible to fish upon completion of the project. Currently a road prism (approximately 360 feet in length) crosses the stream corridor and blocks fish passage. Long term fish passage will be prevented until the road prism fill is removed to match the grade of the surrounding area. Benefits of the project include restoring fish access to valuable off-channel fish habitat, promoting high quality rearing and spawning habitat for salmonids, and increasing juvenile survival rates. Off-channel wetland complexes are lacking in the Harris Creek watershed relative to adjacent watersheds, and off-channel habitats are limiting salmonid production in Puget Sound watersheds (Snohomish River Basin Salmon Recovery Technical Committee 2002). Relative to mainstem habitats, hydrologically stable off-channel habitats support higher densities of Coho salmon and provide critical overwintering habitat that can increase the survival rate of juvenile salmonids (Blackwell et al. 1999; Decker and Foy 1999). The Snohomish River Basin Salmon Conservation Plan (2005) recommends correcting identified fish passage barriers within the Harris Creek watershed as a valuable restoration action.