Mortenson was selected by MidAmerican Energy Company (MidAmerican) to construct the Diamond Trail Wind Project in Iowa. The scope of work included public road improvements, access roads, foundations, collection system installation, wiring and erection of 19-Vestas V110 turbines, 25 - GE 2.8 turbines and 34-Vestas V136 turbines, transmission line, substation, O&M building and met towers. 

Diamond Trail is part of MidAmerican’s Wind XII project, which made the company the first investor-owned U.S. utility to offset 100 percent of its customers’ electricity usage with renewable energy. Along with Diamond Trail, we constructed three other projects in the Wind XII wind energy portfolio.