Bonneville Power Administration (BPA) proposes to construct a new 500/230-kilovolt (kV) Longhorn Substation, which would also require some modifica…
Office of NEPA Policy and Compliance
May 31, 2023
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Bonneville Power Administration (BPA) proposes to construct a new 500/230-kilovolt (kV) Longhorn Substation, which would also require some modifications and upgrades (i.e., replacing structures, raising structures to remediate impaired spans, and relocating portions of an existing fiber optic cable onto new wood poles) along the existing 500-kV McNary-Coyote Springs No. 1 transmission line in Morrow and Umatilla counties, Oregon.