Fletcher Bay Rd Culvert Removal Design

The City of Bainbridge Island advanced the conceptual designs for a fish passable road crossing at Fletcher Bay Rd NE and Springbrook Creek to the 30% level with assistance from Salmon Recovery Funding Board funds. During the design process the City had fruitful interactions with multiple stakeholders including the Suquamish Tribe, Department of Fish and Wildlife, Bainbridge Island Land Trust, Wild Fish Conservancy, Salmon Recovery Funding Board and community members. These discussions steered the design toward a crossing that will be resilient to higher flows and let fish in all life stages move up and down the stream corridor. The design team worked with the City to understand the constraints of building a free spanning bridge at this location and found alternatives to the conceptual design that would work to achieve all the fish passage goals with less site impact.

The goal of the project is to design a fish passable, replacement crossing structure for the failing culvert and fishway currently conveying Springbrook Creek under Fletcher Bay Road.