State Street Watermain and Resurfacing Project

Project Overview

This is a continuation of projects along State Street to replace aging drinking water pipes, improve stormwater infrastructure to improve water quality, resurface a road in poor condition, consider the University of Michigan’s 2050 Campus Plan, and enhance safety and mobility options as outlined in the city’s Moving Together Towards Vision Zero transportation plan.

Aug. 22, 2025

This week, the contractor made steady progress on several parts of the project, including:

Electrical work for University of Michigan and DTE streetlights
Installation of the stormwater infiltration system (to be completed in the coming weeks)
Installation of traffic signals at the East William Street and State Street intersection
Removal of sidewalk, curb, and pavement along State Street
Connecting the water main to Angell Hall

For the week Aug. 25, planned work includes:

Completing installation of the stormwater infiltration system
Continuing electrical work for University of Michigan and DTE streetlights
Ongoing installation of traffic signals at East William Street and State Street
Continuing removal of sidewalk, curb, and pavement along State Street
Installing a 10’x10’ University of Michigan water vault and continuing work on the water main connection to Angell Hall
Beginning grading for the new west side curb

Aug. 15, 2025

This week, the contractor made steady progress on multiple fronts. Work included continued installation of the stormwater infiltration system and stone base, along with electrical work for University of Michigan and DTE streetlights. Crews also installed traffic signals at the East William Street and State Street intersection and carried on with the removal of sidewalk, curb, and pavement along State Street.

Week of Aug. 18:

Complete installation of the stormwater infiltration system.
Continue electrical work for U-M and DTE streetlights and install traffic signals at East William Street and State Street.
Ongoing removal of sidewalk, curb, and pavement along State Street.
Begin installation of the water main service connection to Angell Hall.

Aug. 8, 2025

This week, the contractor worked near the South University intersection, installing the stormwater infiltration system, laying the stone base for the west half of State Street (East William to the U-M Literature, Science & Arts building), and installing foundations and conduit for U-M owned sidewalk lights.

Week of Aug. 11:

Complete stormwater infiltration system installation.
Continue placing stone base on the west side of State Street toward South University.
Begin removing sidewalk and curb on the east side of State Street (sidewalk has been closed since May, so no new pedestrian impacts).
Continue installing foundations and conduit for U-M owned sidewalk lights.

Aug. 1, 2025

Work continued for the installation of the stormwater infiltration system as well as the electrical duck bank for the University of Michigan Union building. The removal of sidewalk, curb and pavement was also done.

Week of August 4:

Final installation of the stormwater infiltration system.
Electrical duct bank work will continue.
Concrete will be poured for sidewalk in specific areas, and installation of foundations and conduit for new streetlights will begin.

July 25, 2025

Work has resumed on State Street following the Art Fair with attention on the proposed storm drainage system.

Week of July 28:

Work continues on the installation of the stormwater system.
The installation of the proposed University of Michigan duct bank across State Street begins.

July 18, 2025

No work occurred in the week of July 14 due to Art Fair.

Week of July 21:

Work will resume with efforts focusing on the installation of stormwater pipes and structures and well as street lighting foundations.

July 11, 2025

New domestic and fire suppression water leads were connected to the Literature, Science and Arts building. Surface work on State Street as well as demobilization of equipment and materials to clear the road and sidewalks for the Art Fair were done.

Week of July 14:

No work will occur due to the Ann Arbor Art Fair.

Week of July 21:

Construction work will resume and State Street between north of South University and south of East William will remain closed through mid-November 2025.
The focus will shift from water main to storm sewer infrastructure installation when work resumes.

July 3, 2025  

The intersection of South University Avenue and State Street was closed on Monday, June 30 to install a new water main and restore the intersection surface for Art Fair. The water service connection for the Union and the Trotter Multicultural Center occurred on July 1 and 3. Plumbing work commenced inside Angell Hall.

For the week of July 7:  

New domestic and fire suppression water leads will be connected to the Literature, Science and Arts buildings on Tuesday, July 8.

The contractor will perform surface work to State Street in preparation for the Art Fair. The contractor will demobilize equipment and materials by Friday, July 11.

Why is this project being done?

Stormwater runoff quality to be improved by constructing an infiltration trench to send water into the aquifer instead of a directly to the Huron River which gives soil the opportunity to filter out pollutants.
Consolidation of two aging water mains maintained by the City of Ann Arbor and the University of Michigan into one.
Protected bicycle lanes.
Two raised mid-block crosswalks to enhance safety for people crossing the road.
A northbound transit queue jump lane to improve bus headway times along the corridor.
A transit signal at the intersection of State Street and East William to allow buses to get ahead of other vehicles.
Enhanced bus stops for northbound and southbound riders.
On-street parking will be removed to make space for the transit and bicycle improvements. The city is reviewing adjacent locations for on-street parking.

Funding sources

This project is funded by the City of Ann Arbor Street, Bridge and Sidewalk Millage, Water Fund, Storm water Fund, and University of Michigan.

State Street will be closed for the duration of construction between South University and East William Street.
The contractor will be required to maintain the construction site for fire truck access.
Detour details are available via the city’s road and lane closure page.
The project will be paused so that State Street can be open for the 2025 Art Fair.

Project Designs

Cross Section A-A

Cross section A-A depicts a view from a location two hundred feet north of the South University intersection looking north toward East William Street. Moving left to right, the street cross section consists of a fourteen-foot-wide sidewalk, a two foot wide curb and gutter, a six-foot-wide protected bike lane, an 8-foot-wide platform that serves as a southbound bus stop for AAATA (The Ride) patrons, two ten and half foot north and southbound travel lanes, an eleven foot wide northbound transit lane that will service buses operated by the Ride and the University of Michigan, a three foot buffer area, a five foot wide northbound bike lane, a two foot wide curb and gutter, and a fifteen foot wide sidewalk. Delineation devices will separate the bike lane from the sidewalk and bus stop platform.

Cross Section B-B

Cross section B-B depicts a view from a point four hundred feet north of the South University intersection looking north toward East William Street. Moving left to right, the street cross section consists of a twelve-foot-wide sidewalk, a two foot wide curb and gutter, a five-foot-wide protected bike lane, a two foot wide buffer zone, two ten and half foot north and southbound travel lanes, an eleven foot northbound transit lane that will service buses operated by the Ride and the University of Michigan, an 8-foot-wide platform that serves as a northbound bus stop for The Ride and University of Michigan, a five foot wide protected northbound bike lane, and an eight foot wide sidewalk. Delineation devices will separate the bike lane from the sidewalk and bus stop platform.

Cross Section C-C

Cross section C-C depicts a view from a point seven hundred feet north of the South University intersection looking north toward East William Street. Moving left to right, the street cross section consists of a twelve-foot-wide sidewalk, a two foot wide curb and gutter, a six-foot-wide protected bike lane, a two foot wide buffer zone, two ten and half foot north and southbound travel lanes, an eleven foot northbound transit lane that will service buses operated by the Ride and the University of Michigan, a 10-foot wide greenspace, a five foot wide northbound bike lane, and an eight foot wide sidewalk. Delineation devices will separate the bike lane from the sidewalk.

Contact Information
Phone	734.794.6000
Website	www.a2gov.org
In writing	301 E. Huron St. Ann Arbor, MI 48104

734.794.6000

www.a2gov.org

301 E. Huron St.
Ann Arbor, MI 48104

State Street Watermain and Resurfacing Project

Project Overview

Updates

Project Details

Impacts to Me

Project Designs

Contact Us