Bonneville Power Administration (BPA) proposes to replace a bridge, construct a new bridge and improve access roads along the Walla Walla-Tucannon …
Office of NEPA Policy and Compliance
December 16, 2025Bonneville Power Administration (BPA) proposes to replace a bridge, construct a new bridge and improve access roads along the Walla Walla-Tucannon River No. 1 transmission line. BPA owns and operates this transmission line, located on private land near Dayton, Columbia County, Washington. To provide safe and reliable access to transmission structures, BPA maintains a network of access roads in the area.