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.

Zoo Interchange Project

PROJECT STATUS: Completed and in service

American Transmission Co. is relocating seven overhead 138-kilovolt transmission lines to accommodate the Wisconsin Department of Transportation’s expansion of the Zoo Interchange (Interstate Highway 894-94/U.S. Highway 45).  All of the circuits will be moved to accommodate expansion and realignment of the interchange and the existing lattice structures will be replaced with single poles.

The project also involves substation work, including modifications to the Brookdale and Bluemound substations and construction of a new substation on the grounds of the existing We Energies 96th Street Substation.

Project at a Glance
Project summary:Transmission line relocation and substation construction and modifications to accommodate WisDOT expansion of the Zoo Interchange
Line length:Approximately 11 miles
Voltage:138,000 volts
Estimated cost:Approximately $50 million
Pole height: 115 to 180 feet
Construction schedule: Substation work began in February 2012; transmission line relocation work began June 2013 and will continue through November 2014. Restoration efforts will continue until spring 2015.
In-service date:November 2014
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