I-794 Bridge Overlays - Milwaukee County


WisDOT will be completing preventative maintenance on the structures along I-794, located east of the Marquette Interchange. As part of the proposed project, thirteen structures along I-794 will receive Polyester Polymer Overlays (PPC).  28 additional structures are proposed to have deck sealing as an improvement, as well as another additional structure located at the Marquette Interchange​. 

PPC overlays are intended to replace the wearing surface, seal the bridge deck, and prevent further deterioration by protecting the steel reinforcement from corrosive chlorides leftover from road salt. A PPC overlay application is a three-step process. It begins by removing and patching areas where deterioration is over 1-inch below the concrete surface. After patching, the top inch of concrete is removed from the bridge surface and then replaced with the PPC overlay.  Deck sealing is a sprayed application that is intended to provide preventative measures against deterioration and extend the service life of the existing bridge decks.

The Marquette Interchange was completed in 2008. In 2017, preventative maintenance was completed on the north, south and west leg structures. This project will address the east leg and complete the required maintenance on the rest of the interchange.

Traffic Impacts

During construction, peak hour traffic will be maintained. Traffic will be restricted overnight with full closures and detours needed to complete the work.


Construction is currently scheduled for summer/fall 2025 with construction starting as soon as summer/fall 2023, pending funding availability. 


Design phase - Do you have any comments or questions? We'd like to hear from you! Please feel free to contact the project representatives below.​


Jimmy Schumacher, P.E.
WisDOT Design Project Manager 
(262) 521-4428

Dan Sellers
WisDOT Communications Manager
(262) 548-6702