Current Projects: West Interceptor Rehab-Segoe Road to Shorewood Boulevard

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Project overview

The District is completing this project to provide safe and reliable wastewater conveyance to residents and businesses while protecting public health and the environment. Rehabilitation of the West Interceptor will provide structural stability, improve flows, prevent infiltration of groundwater and extend the life of the interceptor. An interceptor is the largest component of a sewer network. It receives flow from smaller sewer lines and directs sewage to the wastewater treatment plant. 

The West Interceptor serves the City of Middleton, the City of Madison, the Village of Shorewood Hills, and the Town of Westport. The portion of the West Interceptor to be rehabilitated with this project is among the oldest interceptors in the District’s collection system, dating back to 1932. The existing pipe contains structural defects which warrant rehabilitation. The existing manholes are exhibiting signs of corrosion, general wear and need rehabilitation.

This project will rehabilitate a portion of the existing West Interceptor pipe and manholes. View a map of the project overview. To renew the pipe, this project will utilize a trenchless technology, cured-in-place-pipe (CIPP), to minimize disturbance. The project anticipates needing to bypass flow temporarily though the uses of pumps, hoses and ramps. Due to the location of the existing interceptor, there will be necessary temporary traffic impacts along University Avenue and Shorewood Boulevard for access of the trenchless technology. Manhole renewal will be performed with a general cleaning, prepping, coating and inspection – requiring access through each manhole lid. The District is coordinating with the City of Madison and Shorewood Hills for this work.

Public involvement

The public will be notified in advance of traffic closures. Businesses and residences adjacent to the work will be notified by the contractor in advance to minimize water use.  The contractor will make special arrangements to maintain water flow from high flow properties as needed.


This project will be located along five portions of the existing West Interceptor:

  • Northwest of Segoe Road, south of the Wisconsin & Southern Railroad, generally behind the State of Wisconsin Building
  • Locust Drive from a private drive to the west to Burbank Place to the east
  • Burbank Place from Locust Drive to University Avenue
  • University Avenue from Hilldale Way to Shorewood Boulevard
  • Shorewood Boulevard from University Avenue to south of the Wisconsin & Southern Railroad

Estimated Schedule

Planning: January – March 2024

Design: April – September 2024

Bid: October 2024, tentative

Construction: November 2024 – April 2025, tentative

Project details

Project Type:

Sewer Rehabilitation, CIPP


Five portions of the existing West Interceptor:

  • Northwest of Segoe Road
  • Locust Drive
  • Burbank Place
  • University Avenue
  • Shorewood Boulevard




Planning: Jan-Mar 2024
Design: Apr-Sept 2024
Bid: Oct 2024, tentative
Construction: Nov 2024-Apr 2025, tentative


In Design

Project Contact:

Rachel Feil

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