highway overpass in milwaukee

Holt Avenue OVERPASS PROJECT

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Project Update

Thank you to all who attended the open house on June 3rd. We appreciate your time and your feedback on the elements of the proposed designs. The proposed designs incorporate the unique opportunities of the project site with its varied topography and land use.

If you missed the open house, check out the posters that are linked under Project Resources. Please use the comment form below to send any feedback or questions you may have about the project.

Project Overview

The Holt Avenue Overpass Project is the fifth project of the Green Highways initiative. Highway runoff is the source of many forms of pollutants, including vehicular solvents, heavy metals, oils, salt, and suspended solids. This polluted runoff flows untreated through stormwater sewers into nearby waterways.

Green Highway projects redirect the polluted runoff into a variety of green infrastructure practices under and around overpasses to manage the runoff on site and keep it out of our waterways.

The Holt Avenue Overpass Project will take advantage of open space along Highway I-43 between Holt Avenue and Oklahoma Avenue and the highway’s on- and off-ramps in this area.

As part of this project, the Wisconsin Department of Transportation (WisDOT) is seeking public input regarding the Holt Avenue Park and Ride Lot within the project limits. WisDOT is currently evaluating potential future infrastructure or community uses for the lot, which remains temporarily closed.

Planning and design is currently underway with construction planned for summer of 2026.

Project Goals

  • Treatment and storage of the first inch or rainfall on the highway
  • Improve water quality by reducing pollutants entering waterways

Timeline

  • Design – Q1 2025 – Q1 2026
  • Construction – Q2 2026 – Q4
  • Post-construction – 2027 - 2031

Project Map

Partners

Project Resources

Comments/Questions

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