Colley Road-Brick Church Rebuild Project

American Transmission Co. plans to rebuild a 20-mile, 69,000-volt line between the Colley Road Substation in Beloit, Wis., and the Brick Church Substation in Walworth, Wis. The project is needed to replace aging infrastructure and help ensure electric reliability in the area by relieving potential system constraints due to projected load growth.

The project will involve stringing new wires and replacing aging wood transmission poles with new steel poles. The current route will generally be maintained, though minor adjustments are planned to improve design efficiency.  Spans will be increased where possible to minimize the total number of structures. The new substation will be constructed on approximately 10 acres of land owned by ATC near the town of Clinton, Wis.

Project at a Glance
Areas that benefit: Rock and Walworth counties
Line length:Approximately 20 miles
Voltage:69,000 volts
Estimated cost:Approximately $40 million
End points:Colley Road Substation in Beloit, Wis., and the Brick Church Substation in Walworth, Wis. The project also involves construction of the new Tiger Substation near Clinton, Wis.
Right-of-way width: Approximately 80 feet
Structure height: 90 feet typical, 120 feet maximum
Structure type: Single pole galvanized and weathered steel
PSC Docket ID:137-CE-171
Schedule*
*Dates are anticipated and subject to changes
File application with PSC:May 2014
Receive PSC decision (anticipated):Fall 2014
Begin construction:Mid to late 2015
Project in service:Summer 2018