Wisconsin Department of Transportation

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WIS 45/100 Corridor Study
Franklin, Hales Corners, and Greenfield, Milwaukee County

View SE, WIS 45/100 Corridor Study project location.
Map key - Thick orange line is the project overview/location. Blue tear drop with dot in center is the project limit.

Project location

WIS 45/100, in Franklin, Hales Corners, and Greenfield, in Milwaukee County (W. Puetz Rd. to W Layton Ave.).

Project overview

5.3-mile study to:

  • Evaluate need for additional lanes
  • Analyze traffic at all intersections
  • Evaluate access locations and median openings to improve highway safety and efficiency
  • Evaluate impacts of proposed improvement alternatives

Study outcomes to include:

  • Environmental Assessment (EA) document
  • Design Study report
  • Preliminary plan

This study to address long term safety and congestion needs that could not be addressed with the 2007 pavement resurfacing and maintenance project.


Study started in 2007. The study corridor has been split into two construction projects:

US 45/WIS 100 (County MM to College Ave.)

  • Environmental report (ER) approved Nov. 2011
  • Real estate acquisition is currently on hold
  • Reconstruction tentatively scheduled for spring of 2019

US 45/WIS 100 (College Ave. to Layton Ave.)

  • Environmental document approval anticipated spring 2014
  • Real estate acquisition anticipated to begin in early 2015
  • Reconstruction tentatively scheduled for spring of 2019

SSI - Project contacts Questions about the content of this page:
WisDOT Southeast Region Office, ser.dtsd@dot.wi.gov
Last modified: Feb. 3, 2014

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