American Transmission Co. projects

Project website for a Wisconsin-based company that owns and operates the high-voltage electric transmission system that powers communities in portions of the Upper Midwest.

American Transmission Co. plans to rebuild a 21-mile, 69,000-volt transmission line in Marinette County between the Caldron Falls Hydro Substation on Boat Landing 8 Road and the Goodman Substation on 614 Woods Lake Road. The line is in an aged condition and reaching the end of its asset life. The project will involve removing the existing line and building a new line in the same corridor, but generally offset about 38 feet from the current line. The offset is necessary because the existing line cannot be taken out of service for an extended period.

Additional work will be required at Caldron Falls and Goodman substations and Fox Hills Switching Station.

The project will require approval from the Public Service Commission of Wisconsin.

Learn more about ATC’s public involvement process.

Docket # 137-CE-187

Project at a glance
Counties where facilities may be located:Marinette County, WI
Line length:21 miles
Voltage:Currently 69-kV; built to 138-kV standards
Estimated project cost:$28.2 million
End points:Caldron Falls Substation (Boat Landing 8 Road) and Goodman Substation (Woods Lake Road)
File regulatory applicationJune 2017
Regulatory review & public comment:Late 2017-early 2018
Anticipated regulatory decision:2018
Start construction (Right-of-way clearing):January 2019
Foundations, structures and line construction:Summer 2019
Target in-service date:Summer 2020
*Dates are anticipated and subject to changes
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