ATC plans to invest $3.1 billion over 10 years in construction and maintenance projects in our five operating zones. The partial list below summarizes some of the largest projects.
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North Central Wisconsin (Zone 1) |
| Project |
Description |
Status |
| Arrowhead-Weston |
345-kilovolt line between Wausau, Wis. and Duluth, Minn. (approximately 220 miles) to improve reliability, help increase electric import capability, reduce disturbances. |
Portions under construction and energized. Completion scheduled for 2008. |
| Skanawan-Hwy. 8 (Rhinelander Loop) |
Addresses low voltages/voltage collapse in the Rhinelander area. |
Complete and in service. |
| Venus-Metonga |
Approximately 11-mile, 115-kilovolt transmission line between Monico and Crandon, Wis. to improve electric reliability and resolve local electric distribution voltage and capacity problems. |
Complete and in service. |
| Cranberry-Conover-Plains |
New, 138-kilovolt transmission line between the Cranberry Substation south of Eagle River and the Conover Substation east of Conover. |
Approved by the PSC in Nov. 2006; construction on the Cranberry-Conover segment began in Aug. 2007. |
| Gardner Park - Central Wisconsin |
Approximately 50-mile, 345-kilovolt line between a new Gardner Park Substation near Weston Power Plant and a new substation in central Shawano County. Needed to support output of Weston Power Plant and strengthen reliability. Also see Morgan-Werner West project. |
Construction underway in some areas. Visit www.atc-gcmw.com for more detailed information. |
| Gardner Park - Hilltop |
Rebuild of an 11-mile, 115-kilovolt line to prevent electric system overloads and to support the addition of a new generator at Weston Power Plant. |
Complete and in service. |
| South Central / Southwest Wisconsin and Northcentral Illinois (Zone 3) |
| Project |
Description |
Status |
Dane County projects
Rockdale - West Middleton Project |
A series of projects are 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. |
| Columbia-Rio |
A new nine-mile, 69-kilovolt transmission line from a substation near the Columbia Power Plant to a substation near Rio. The line will also connect to a new substation to be built in Wyocena by Alliant Energy. |
Complete and in service. |
| Nelson-Dewey |
A new 161-kilovolt line, approximately 2-miles in length, from the Nelson Dewey plant to the Stoneman Substation to support additional output from a new generating unit at the Nelson Dewey plant. |
Public outreach 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. |
Regulatory approval granted for the final phase, which involves some line construction, upgrades at several substations, and the conversion from 69-kV to 138-kV in the spring of 2009. |
| West Darien to SW Delavan
(Also known as Delavan-Darien Phase 1- Part of Rock River - Elkhorn project)
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Part of a Rock River - Elkhorn project described above. This phase involved partially rerouting the area’s current 69-kilovolt transmission system and upgrading the facilities to 138 kilovolts to accommodate growth in demand. Project includes a new substation in southwest Delavan. |
In service and now operating at 69 kilovolts; will be converted to 138 kV when entire project is completed in spring '09. |
| SW Delavan to Bristol
(Also known as Delavan-Darien Phase 2- Part of Rock River - Elkhorn project)
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Part of Rock River-Elkhorn project described above. Involves connecting the new Southwest Delavan substation to the Bristol substation and to a new substation being built by Alliant Energy on a 5-mile route along Interstate 43. |
Approved by the PSC in March 2006. Easement acquisition underway. Construction to begin in November 2007. |
| Dodge County Phase I |
Several initiatives are being proposed to strengthen the system in central Dodge County including a project to construct approximately six miles of new 138-kilovolt transmission line to connect the Horicon Substation with the Rubicon Substation located near Neosho. |
Construction underway. |
| East Beaver Dam |
1.5 miles of new 138-kilovolt transmission line to serve a new Beaver Dam substation being proposed by Alliant Energy. |
Complete and in service. |
| Fitchburg-Verona |
Proposal for a 6-mile, 138-kilovolt transmission line connecting a new substation in Fitchburg to an existing substation in Verona. |
Construction application submitted to PSC in Dec. 2006. Under PSC regulatory review. |
| Jefferson County |
Proposal to construct approximately 17 miles of new 138-kilovolt transmission line and to upgrade several area electric substations. |
PSC rendered decision. Construction scheduled to begin fall 2007. |
North Madison -
Waunakee (Huiskamp) |
Proposal for a critical reinforcement to the electric system, which includes a new 8-mile, 138-kilovolt line from the Town of Vienna to the Town of Westport. |
Approved by the PSC in July 2007. |
| Portage - Montello |
Upgrading and building 11 miles of 69-kilovolt lines. |
Complete and in service. |
Rockdale -
West Middleton |
Proposal to build a new 345-kilovolt transmission line between the town of Christiana and the town of Middleton. |
Final proposed routes announced. Application to be submitted to PSC in October 2007 for regulatory review. |
| Sauk City |
Proposal to build 3 miles of new 69-kilovolt power line from the Tower St. Substation in Prairie du Sac to the new Sauk City Phillips St. Substation. |
Engineering work underway. |
| Sauk County |
ATC increased the capacity of 33 miles of existing transmission lines, upgraded six substations and built three new substations in cooperation with Reedsburg Utility and Wisconsin Power & Light. |
Complete and in service. |
| Paddock-Rockdale |
A proposal to add a second 345-kilovolt line along an existing transmission line corridor between the town of Beloit and the town of Christiana. |
ATC application is being reviewed by the PSC. A decision is expected late 2007 or early 2008. |
| Wempleton-Paddock |
Add a second 345-kilovolt line to an existing line between southern Rock County and northern Illinois. |
Complete and in service. |
| Northeast Wisconsin (Zone 4) |
| Project |
Description |
Status |
| Crivitz-High Falls |
Approximately 15-mile, 69-kilovolt line between Crivitz Substation and High Falls Substation in the Towns of Beaver and Stephenson. |
Real estate work underway. |
| Ellinwood-Sunset |
Structure replacement along Hwy. 41 between the Ellinwood and Sunset Substations in the Town and City of Oshkosh. |
Construction will begin in August 2007. |
| Gardner Park - Central Wisconsin |
Approximately 50-mile, 345-kilovolt line between a new Gardner Park Substation near Weston Power Plant and a new substation in central Shawano County. Needed to support output of Weston Power Plant and strengthen reliability. Also see Morgan-Werner West project. |
Split into several segments. Construction underway in some segments. Visit www.atc-gcmw.com for more detailed information. |
| Morgan -
Werner West |
Proposing for a new 50-mile transmission line from the Morgan Substation south of Oconto Falls to a new substation – called Werner West – in the New London area. |
Split into several segments. Construction underway in some segments. Visit www.atc-gcmw.com for more detailed information. |
| Plymouth-Johnsonville |
With Plymouth Utilities, build a new substation and a 2.25-mile, 138-kV line to serve Johnsonville Sausage plant expansion. |
Approved by the PSC in Oct. 2006. |
| Southeast Wisconsin (Zone 5) |
| Project |
Description |
Status |
| Duplainville (Waukesha – Sussex) |
A new nine-mile, 138-kilovolt transmission line built between Waukesha and Sussex. It connects to new We Energies electric substation in Pewaukee. |
Complete and in service. |
| Paris-St. Martins |
A 17-mile transmission line is being upgraded between the Paris Substation near Union Grove and the St. Martins Substation in Franklin. |
Complete and in service. |
| Port Washington-Saukville |
Construction is under way to upgrade two 5-mile lines that connect Port Washington with the Saukville Substation. The project supports the new units at We Energies Port Washington Generating Station. |
Complete and in service. |
| 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. More |
| Saukville-St. Lawrence |
Rebuild 19 miles of 138-kilovolt transmission line from the Saukville Substation to the St. Lawrence Substation. |
Construction application approved by PSC in Dec. 2006. Construction to begin fall 2007. Tree removal and vegetation clearing 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. |
Some work at the power plant site is underway. Awaiting PSC approval for the remaining work. |
