West Interceptor Shorewood Relief


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. This project will replace the existing interceptor to increase capacity, which ensures the safe and reliable conveyance of wastewater while protecting public health and the environment.

The District plans to construct Phase 1 of the West Interceptor Shorewood Relief pipe next spring. Phase 1 will start in Indian Hills Park and drain to the east. From Indian Hills Park, it will run on the north side of the railroad tracks to Shorewood Boulevard. The new pipe will be installed in the same location as the existing pipe. The trench will be up to 15 feet deep and 25 to 30 feet wide. Impacts to the construction corridor will include construction activity and noise and temporary bike path detours.  No trees on private property will be removed but there will be some permanent tree loss on railroad property.

Phase 2 of the project will be constructed in 2022 in coordination with the City of Madison University avenue project.  Phase 2 will run in University Avenue from Marshall Court to Highland Avenue. Phase 3, which runs in the bike path from Shorewood Boulevard to Marshall Court, will be constructed in 2023.

All interested parties are invited to attend. For questions, contact Eric Hjellen, Madison Metropolitan Sewerage District project manager, erich@madsewer.org or 608-222-1201 ext 348.