DOE's BPA issued a final environmental assessment for the South of Tri-Cities Reinforcement Project (DOE/EA-2291).
Office of NEPA Policy and Compliance
March 13, 2026
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South of Tri-Cities Reinforcement Project; Benton County, Washington
Bonneville Power Administration (BPA) issued a final environmental assessment (EA) for South of Tri-Cities Reinforcement Project (DOE/EA-2291). The EA assesses the potential environmental impacts of construction of a new 500/115-kilovolt (kV) substation and 18-mile-long 115-kV transmission line in Benton County, Washington.
For more information, see South of Tri-Cities Reinforcement Project.