Box Canyon Dam

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Box Canyon Dam Upstream Fish Passage Project

As per of the FERC Relicense Process, Box Canyon Dam, which is located on the Pend Oreille River near Ione, WA is required to provide upstream passage for the Bull Trout, West slope Cutthroat, and the Mountain Whitefish.  Associated Underwater Services is providing the dive support for the project working for the General contractor, J.W. Fowler and the cofferdam subcontractor, Pacific Pile and Marine.  Multiple dive crews are required to complete the work scope which includes rock removal, sheet pile burning, installation of a steel dewatering structure, and underwater concrete placement.  Construction began in June 2016 and is scheduled for completion by October 2017.