DESCRIPTION
King County completed preliminary design of the Haffner-Barfuse project, renamed as the Fall City Floodplain Restoration Project, to restore natural riverine and floodplain habitat forming processes along a high priority reach of the Snoqualmie River. The project location, downstream of the Raging River and town of Fall City, is categorized as a mainstem primary restoration sub-basin in the Snohomish River Basin Salmon Recovery Plan.
The project includes the construction of two large facility setback projects on the Snoqualmie River at Fall City (SAFC). These are two of the four high priority projects identified in the SRFB-funded SAFC Feasibility Report. These projects will connect with an adjacent Upper Carlson floodplain restoration project that King County implemented in 2014.
The preliminary design includes two high priority floodplain restoration projects that will remove or modify a levee and revetment on opposite sides of the Snoqulamie river. When constructed this project will increase and improve edge and off-channel habitat and gravel bar formation for juvenile salmonids and reduced scour of redds thereby benefiting adult salmonids. The Haffner and Barfuse projects will remove 2,600 feet of revetment or levee to allow unconstrained natural processes in approximately 145 acres of floodplain and reconnect almost a mile (0.85 miles) of side channel and increase