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LIST OF TRANSMISSION PROJECTS  
 

ATC plans to invest $2.8 billion over 10 years in construction and maintenance projects in our operating areas. The partial list below summarizes some of the largest projects.

Project Description Status
Badger Coulee Proposed 345-kV, 150-mile line from the La Crosse area to the greater Madison area. Public outreach underway.
Brodhead-South Monroe An 18-mile, 69,000-volt electric transmission line rebuild. Engineering underway.
Canal-Dunn Road Proposed upgrade of 69-kilovolt transmission line running through Door County. Approved, construction to begin Summer 2011
Clear Lake-Woodmin Seven-mile extension of the transmission system from Clear Lake Substation in Woodruff, Wis., to a new substation, to be built by Wisconsin Public Service Corp., off Highway 47 near west of Woodruff. Under regulatory review
Dane County A series of projects planned in and around Dane County to meet electrical demand in the rapidly growing areas throughout the county. See project page for more specific information about the status of various projects.
Mill Road-Rockdale Proposed line upgrades with some new line construction between Menomonee Falls and Jefferson County. Project evaluation resulted in seven-year delay to 2018.
Milton A 4-mile, 69,000-volt transmission line to connect the new Red Hawk Substation to the transmission grid that serves the south central Wisconsin area. Engineering underway.
Monroe County-Council Creek Rebuilding a 17-mile line and adding a new 161-kilovolt circuit to strengthen area electric system reliability. Public outreach underway.
Oak Creek/Elm Road Several upgrades are needed to support the output of the proposed Elm Road (Oak Creek) Power Plant. This includes some pole and wire replacement and work at several area substations. Work beginning at substations and isolated areas of the system.
Rockdale-West Middleton Proposal to build a new 345-kilovolt transmission line between the town of Christiana and the town of Middleton. Engineering underway.
Rock River-Elkhorn This four-phase project is the conversion of a 17-mile, 69-kilovolt system serving portions of Rock and Walworth counties to a 138-kilovolt system. Several segments now energized.
Sun Valley Three miles of new transmission line to connect to a new Alliant Energy substation (Sun Valley) in the Town of Oregon. Construction ongoing.
Western Milwaukee County Electric Reliability Project An electric system reinforcement project in Milwaukee County. ATC is proposing to build a two-mile, 138,000-volt transmission line to serve a new We Energies substation. Public outreach underway.
Warrens Substation Plan to build approximately 7 miles of new 69-kilovolt power line to connect to a new Alliant Energy substation in Warrens. Plans underway.