Location: North Dakota
Description: The 144-mile Antelope Valley Station to Judson transmission line for Basin Electric Power Cooperative (Basin Electric) in North Dakota was a two-year project designed to expand and upgrade the transmission system in the Bakken Formation, an area covering approximately 200,000 square miles. The 345kV, single circuit line consists of direct embed monopole, 3-pole and H-frame structures, and begins in Beulah, ND, and runs west toward Grassy Butte then north to Williston. To minimize impacts on surrounding soil and wildlife, Great Southwestern utilized a ‘Kaiser’ walking mobile excavator as a resolution to the project’s unique environmental and construction challenges. The Erickson Sky Crane was also used to pick, fly and set the 16,000 lb. structures, which avoided the use of heavy equipment and matting that could have damaged delicate ground conditions and caused additional disruptions to wildlife inhabiting the area.
Client: Basin Electric Power Cooperative (Basin Electric)
Work Performed By: Great Southwestern Construction, Inc., a subsidiary of MYR Group