Western Area Power Administration (WAPA) proposes to conduct routine maintenance to structures on the Long House Valley - Kayenta (LHV-KAY) 230-kV …
Office of NEPA Policy and Compliance
February 28, 2019
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Western Area Power Administration (WAPA) proposes to conduct routine maintenance to structures on the Long House Valley - Kayenta (LHV-KAY) 230-kV and Kayenta - Shiprock (KAY-SHR) 230-kV Transmission Lines, located in Apache and Navajo Counties, Arizona. Structures 79/5, 81/2, 82/5 on the LHV-KAY Transmission Line and 103/5, 104/1, 131/4 and 150/4 on the KAY-SHR Transmission Line require maintenance to clean-out and remove accumulated sand, sediment and vegetation from around the steel lattice footers and from inside the structure footprint. Structure 117/4 on the KAY-SHR Transmission Line requires maintenance to add fill around the steel lattice footers. Due to the shifting soils along both Transmission Lines, this maintenance is needed to help maintain the overall stability and longevity of the structures. Equipment utilized for structure maintenance would include track dozer, backhoe, skid-steer loader, utility trucks and other rubber-tired vehicles. To access the work areas, maintenance crews would use existing access roads. No road maintenance activities are authorized as part of this Categorical Exclusion (CX).