Central Ferry-Lower Monumental 500-kilovolt Transmission Line Project
BPA is proposing to construct, operate, and maintain a 38- to 40-mile-long 500-kilovolt (kV) transmission line in Garfield, Columbia, and Walla Walla counties, Washington. The proposed line would extend west from BPA’s planned Central Ferry Substation in Garfield County to BPA’s Lower Monumental Substation located in Walla Walla County. BPA is considering four routing alternatives for the proposed Central Ferry-Lower Monumental transmission line; portions of all four routes would parallel existing BPA lines in the area. Two of the routing alternatives for the transmission line are about 38 miles long, and the other two are about 40 miles long. BPA’s preferred alternative is the Combination A Alternative.