Western Area Power Administration (WAPA), Rocky Mountain Region (RMR), proposes to conduct a geotechnical investigation study on existing Structure…
Office of NEPA Policy and Compliance
August 14, 2025
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Western Area Power Administration (WAPA), Rocky Mountain Region (RMR), proposes to conduct a geotechnical investigation study on existing Structures 98/4, 99/1, and 142/4 on the Kayenta-Shiprock (KAY-SHR) 230-kV Transmission Line and on existing structure 77/1 on Long House Valley-Kayenta (LHV-KAY) 230-kV Transmission Line in Apache and Navajo counties, Arizona. The purpose of the project is to determine the soil profile around each structure to develop a construction solution to significant erosion that is undermining the structures.