Utility Companies Complete Cardinal-Hickory Creek Transmission Line

Construction work on a high-voltage transmission linking Iowa and Wisconsin has been completed and the line is fully operational, a group of utilities announced September 27.

American Transmission Company, Dairyland Power Cooperative and ITC Midwest began work on the 102-mile Cardinal-Hickory Creek line between Iowa’s Dubuque County and Wisconsin’s Dane County in April 2021. Construction wrapped up late the previous week, ITC Midwest spokesperson Rod Pritchard said. The 345-kilovolt line was fully energized on September 26.

The utilities say the line will improve electrical reliability and support renewable energy projects.