I-39/90 Expansion Project

Illinois state line to Madison, Dane and Rock counties

Noise barriers

At the start of a state highway project, the Wisconsin Department of Transportation (WisDOT) determines noise impacts and evaluates possible mitigation measures, such as noise barriers.

After careful evaluation and a voting process, WisDOT installs noise barriers along portions of state highways to minimize noise impacts.

If a simple majority of the benefited receptors (properties with 8dB reduction) approve, noise barriers will be constructed in the proposed locations.


The following documents are in Adobe PDF PDF format. (Note: Some files are large and may take longer to download depending on individual connection speeds. Users may need to zoom in to see details.)

General information

Noise barrier locations
Approved noise barriers to be installed during 2018-2021 construction seasons.