Nov. 26, 2024 Project Update
The proposed sanitary sewer installation is complete from Arbana Drive to the east side of Westwood Avenue, past the playground in Maryfield Wildwood Park.
The City's contractor has been working on sewer installation between Westwood and Doty since early October, but progress was unexpectedly slowed due to rocks encountered along the trenchless pipe path. The new pipe installation in this section is now anticipated to be complete by mid-December, but due to the overall delay and upcoming winter season, final sewer connections at Westwood and Doty will be shifted to Spring 2025.
Over the next several months, construction activity to the west of Doty Avenue is anticipated to continue through the winter months as weather conditions permit. This will be limited to trenchless sewer installation in rear yard areas to the north of Dexter Avenue.
In Spring 2025, major open cut construction will resume with final connections near Doty Avenue/Wildwood Avenue, followed by construction along Dexter Avenue near Lyn Anne Court and the Maple Ridge Apartments. Project construction is currently anticipated to be complete by late Spring 2025.
Maryfield Wildwood Park will remain in use as a material storage and staging location until the end of the project in late Spring 2025. All areas of the park outside of the staging area will be stabilized before the Winter and subsequent final restoration will occur when weather conditions improve allow in 2025.
It is anticipated that Doty Avenue will be reopened to local traffic by mid-December and all other roads will remain open for traffic until major construction resumes in Spring 2025.
For information on road closures for this and other projects this construction season, please the road/lane closure page.
Project limits
North of Dexter and West Huron Street, between Lyn Anne Court and Arbana Drive. The project will involve Dexter, Doty, Westwood Avenue, Maryfield Wildwood Park, Wildwood Avenue, Revena Boulevard, and Arbana Drive. The map below shows the proposed sewer route.
Why is this project being done?
Ann Arbor's LynAnne-Arbana Sewer Project, funded through the Development Offset Mitigation Program (DOM), involves the replacement of 4,300 feet (0.8 miles) of Existing Sanitary Sewer from the Maple Ridge Apartments to Arbana Drive. The existing sanitary sewer line through the project area was primarily constructed in the 1920s to serve the northwest portion of the city.
This project is being done:
- To address sewer surcharging and maintenance issues
- As a continuation of past sewer projects from West Park to Arbana Drive
- To maintain a key natural corridor
As part of this project, the city will:
- Install the new, larger sanitary sewer and connect it to the existing system.
- Maintain existing sanitary sewer service throughout the design and construction.
- Restore areas following construction, including green space and pavement.
Possible impacts to residents
- Staggered local road closures at Arbana, Westwood/Doty. Access to residences will be maintained.
- Brief lane closures along Dexter.
- Sections of Maryfield Wildwood Park will be closed to public.
- Local road closures, access to residences will be maintained.
- Tree removals.
- Construction noise, including generators for bypass pumping as well as some dust and debris in the areas of work.
Cost and funding source
This project is being funded by the City of Ann Arbor Developer Offset-Mitigation Program, which uses developer payments to fund sanitary sewer wet weather capacity improvement projects.
Documents and materials
October 15, 2020 Project Meeting
June 11, 2020 Informational Meeting Materials
