The Wisconsin Department of Transportation (WisDOT) has maintained and rehabilitated these ramps, bridges, pavements and other structures on I-43 for over 50 years. The North-South Freeway has exceeded its design life and it is no longer economical to maintain.
To modernize this corridor, improvements will be constructed along 14 miles of I-43, from Silver Spring Drive north to WIS 60, in Milwaukee and Ozaukee counties.
What kind of improvements?
- expansion of I-43 from four to six lanes (three lanes in each direction)
- reconstruction of five existing interchanges along the corridor
- Good Hope Road
- Brown Deer Road – constructing a new Diverging Diamond Interchange
- County Line Road – constructing a new full-service interchange
- Mequon Road
- Pioneer Road (County C)
- construction of a brand new interchange at Highland Road
- replacement of the Union Pacific railroad bridge over I-43 in Glendale
- expansion of Port Washington Road in Glendale between Bender Road and Daphne Lane (expanding from two lanes to four lanes that will tie-in to the existing four lanes on each end of this roadway section.)
Why is it needed?
- Accommodate existing and projected future traffic volumes.
- Address pavement and structural needs.
- Improve safety by modernizing the corridor using current design standards.
Want a recap on how the project got here?
- Visit wisconsindot.gov/43corridor for project history, design elements and more.