Transmission Construction

Wilson’s high voltage overhead expertise ranges from 115kV to 500kV. Our design and build team offers dedicated solutions to complete projects requiring hot work, environmentally sensitive areas , and other challenging site conditions on time, in any region, and within budget.



Bonneville Power Administration

Bonneville - Hood River No. 1 Rebuild Project
Wilson rebuilt 24 miles of 115kV transmission line along the Columbia River Gorge near Portland, Oregon for the Bonneville Power Administration (BPA). There were a total of 185 lattice or…

Southern California Edison

Valley South Subtransmission Project, CA
In December of 2020, Wilson completed construction of 15 miles of 115kV subtransmission line for Southern California Edison (SCE). The project, whose design phase began in June of 2018, stretched…

Minnesota Power (ALLETE)

Great Northern Transmission Line 500kV Overhead Project, MN
Wilson, in a joint-venture with Hooper Corporation, built a 224-mile 500kV transmission line from the Canada-U.S. border into Minnesota. The line design was a guyed delta configuration with 1192.5 ACSR…

Pacific Gas and Electric Company

Geysers 115kV and 230kV NERC Mitigation
Wilson made structure modifications to 17 single and double circuit transmission towers, including six top cage extensions and one waist cage extension, on 115kV and 230kV transmission lines throughout the…