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US 51 (Reardon Rd.-County V (Grinde Rd.))
Windsor to DeForest, Dane County

Project location

US 51, Reardon Rd. to just north of County V (Grinde Rd.), Windsor to DeForest, in Dane County.

View SW, US 51 (Reardon Rd.-County V (Grinde Rd.)) project maps.

Project overview

• Reconstruct this segment of US 51 into a 4-lane divided freeway.
• Existing two lanes will be reconstructed and an additional two lanes added to create a 4-lane divided highway.
• The new 4-lane divided highway will transition back to two lanes just north of County V (Grinde Rd.).
• Interchanges to be constructed at Windsor Rd. and County V/North Street.
• Due to the conversion of US 51 to a freeway, all access to the highway outside of the interchanges will be removed.
• Current private driveway accesses onto US 51 will be relocated to either existing side roads, new frontage roads, or new development streets.
• In addition, as part of this project, County V will be realigned east of US 51.
• There will also be bridges constructed as overpasses of two side roads, Vinburn Rd. and the proposed Bear Tree Prkwy.

Status/phase

Construction scheduled in two phases:

• 2012-2013 - Phase 1 construction scheduled, Reardon Rd. to north of Vinburn Rd.
• 2014 - Phase 2, construction scheduled, north of Vinburn Rd. to County V (Grinde Rd.)

Questions about the content of this page:
WisDOT Southwest Region Office, swr.dtsd@dot.wi.gov
Last modified: February 7, 2013