CX-026649: Sammamish-Maple Valley 23/4 culvert

BPA proposes to remove a failed culvert and associated fill material. The work would include excavating approximately 20,000 cubic yards of existin…

Office of NEPA Policy and Compliance

August 3, 2022
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BPA proposes to remove a failed culvert and associated fill material. The work would include excavating approximately 20,000 cubic yards of existing fill and hauling offsite, removing the existing culvert, and removing eroded fill that has been deposited downstream and has blocked an additional culvert.