Madison Metropolitan Sewerage District’s West Intercepting System is a complex network of sewers that provides service to the near west side of Madison, Middleton, Shorewood Hills and Westport. The original West Interceptor was built in 1916, and there have been several extensions, reliefs and replacements added to the system over the years. The existing interceptor needs to be replaced to increase capacity, which ensures the safe and reliable conveyance of wastewater while protecting public health and the environment.
Phase 1 replaced a pipe installed in 1959 that no longer has sufficient capacity to serve the District's growing service area. The new pipe was laid on the north side of the railroad tracks from Indian Hills Park to Shorewood Boulevard. Sewage flow is from west to east (Indian Hills Park toward Shorewood Boulevard).
Phase 2 is a relief pipe to eventually provide the additional required capacity. It is being installed as part of the City of Madison University Avenue project. The District’s work is expected to be complete in Spring 2023 and the overall University Avenue project is scheduled for completion in Fall 2023. Phase 2 will run from University Station just east of Marshall Court to just west of University Bay Drive. The installed pipe will not be connected to a live sewer at either end until Phase 3.
Phase 3 will connect to both ends of Phase 2 (see overall project map). Construction was originally planned for 2023 and is now scheduled to take place in 2024 to avoid interference with the City of Madison University Avenue project.
The District held three public information meetings for phase 1 of this project
- Meeting #3, Virtual: March 18, 2021
- Meeting #2, Virtual: October 6, 2020
- Meeting #1, In-Person: October 21, 2019
Postcards with information about the project and virtual meetings were sent to residents in the project area.
Phase 2 public outreach and public meetings were led by the City of Madison. Meeting information and materials are available at the City’s project web page.
Final adjustments to the Phase 3 design will be made in 2023. In addition to coordination with utilities, municipalities, hospitals, the railroad and other agencies, at least one more public meeting will be held. Date and time are to be determined.