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 various locations in the Zoo Interchange corridor.
- West Allis - along I-894, noise barriers are being considered for areas north and south of Greenfield Avenue.
- Milwaukee - barriers are proposed along I-94 between the core of the interchange and 70th Street, and along residential areas adjacent to the core of the interchange.
- Wauwatosa - on US 45, in the north leg of the corridor, barriers are proposed north of Bluemound Road.
These locations were selected based on a noise analysis that predicts future noise levels. More resources
Handout from January 2013 Greenfield Avenue/I-894 potential barriers
Noise Barrier Meeting Exhibits and Resources
- Noise barrier elevations
- Noise barrier representations
- General noise barrier brochure
- Map of all barriers
- Noise barrier 1
- Noise barrier 7
- Noise barrier 14.1
- Noise barrier 14.2
- Noise barrier 15
- Noise barrier 16
- Noise barrier 17
- Noise barrier 18
- Noise barrier design features
- Noise barrier effectiveness