Western Area Power Administration (WAPA), Rocky Mountain Region (RMR), proposes to approve a request by Tri-State Generation and Transmission Assoc…
Office of NEPA Policy and Compliance
April 5, 2019
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Western Area Power Administration (WAPA), Rocky Mountain Region (RMR), proposes to approve a request by Tri-State Generation and Transmission Association, Inc. (Tri-State) to sectionalize Tri-State’s Erie-Sipres (EE-SRS) 230-kV circuit on the jointly owned Erie-Hoyt (EE-HT) 115-kV double circuit Transmission Line located on private lands in Weld County, Colorado. Tri-State’s EE-SRS circuit is strung on WAPA-owned double circuit structures, which also support WAPA’s EE-HT circuit. The proposed sectionalizing facilities will serve Tri-State’s new Arnold 230-kV Substation via a new 230-kV double circuit transmission line that Tri-State will design, construct, and own. The Arnold Substation will be located approximately ¼-mile south of WAPA’s EE-HT right-of-way (ROW) and the new 230-kV double circuit transmission line will interconnect into the EE-SRS circuit at Structure 1/4. Tri-State also proposes to install new fiber optic ground wire (OPGW) from the Arnold Substation to EESRS Structure 1-4 and between EE-SRS Structure 1-4 and Structure 2-2, where it will be spliced into existing OPGW at EE-HT Structure 2-2.