Northeast Interceptor-Truax Extension Project

   Public meeting

        Wednesday, May 30
        6:30 to 8:00 p.m.
        Carl Sandburg Elementary School
        4114 Donald Drive, Madison, WI  53704

     RSVP Here

Be a part of the project
Madison Metropolitan Sewerage District is seeking public input on the upcoming Northeast Interceptor-Truax Extension project. The new sewer line, which will run from Lien Road to the intersection of Highway 51 and Rieder Road, will increase capacity and boost resiliency of the district’s wastewater collection system.

Four different routes are under consideration. Residents, members of the business community and property owners are encouraged to learn more about the project and provide feedback on the alternatives.

It will be a big dig
When the project gets underway in 2019, it will involve tunneling under East Washington Avenue and excavating at depths exceeding 25 feet.  The effects on traffic will vary depending on the route selected. Construction of the project is expected to begin in 2019 with a total estimated cost of $9.6 million.

Project will boost capacity, build resilience
In 2011, robotic inspection of the 49-year-old existing pipe revealed a number of defects involving corrosion of the interior concrete surface. The existing pipe is also nearing capacity. To meet future anticipated growth, either a bigger pipe (called a replacement sewer) or a second pipe (called a relief sewer) working in parallel with the existing pipe is required.

The project currently under consideration is the relief sewer option. Once the relief sewer is completed, the district intends to rehabilitate the existing pipe by inserting a new lining to protect against further corrosion. This construction strategy reduces risks and total project costs because building the relief sewer first minimizes the need for costly bypass pumping during construction. And ultimately, operating two sewer lines will enhance the resilience of the collection system.  

For questions or to submit public comments, contact Jen Hurlebaus, Madison Metropolitan Sewerage District project manager, jenh@madsewer.org or 608-222-1201 ext 248.