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The original item was published from 11/29/2022 8:46:20 AM to 8/22/2023 12:00:03 AM.

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Posted on: November 29, 2022


Great Lakes Water Authority water infrastructure map of work location and detour; East Avon Rd work

  • Improvements near Rochester Hills and Shelby Township border include installation of new, re-routed 96-inch water transmission main
  • East Avon Road to close between the Avon and Dequindre Road roundabout to west of the intersection of Dequindre Road and 23 Mile Road beginning December 5, 2022


DETROIT – The Great Lakes Water Authority (GLWA) and Road Commission for Oakland County (RCOC) have begun the second phase of significant infrastructure improvements in the area of the Avon Road corridor between Dequindre Road and 23 Mile Road on the Rochester Hills and Shelby Township border.


To accommodate phase two of the improvements, East Avon Road will be closed to through traffic between the Avon and Dequindre Road roundabout to just west of the intersection of 23 Mile and Dequindre from December 5, 2022, through approximately mid-August 2023. Starting in early April 2023, the intersection of 23 Mile and Dequindre will also be closed to through traffic. 


During the East Avon Road closure, the detour route for through traffic will be Dequindre Road to Hamlin Road, east to Ryan Road, north to 23 Mile Road and west back to Dequindre Road, and vice versa.


The infrastructure improvements will increase the reliability of GLWA’s 96-inch water main, which serves multiple communities and over one million residents. In addition, the project will improve access for operations and maintenance, relocate the water main outside of businesses and backyards and improve traffic flow and pedestrian safety at critical intersections. GLWA will continue to provide drinking water to its member partner communities throughout construction.


“Collaborations like the one between GLWA and the Road Commission are critical to ensuring we continue to provide water of unquestionable quality to our member partners,” said Cheryl Porter, Chief Operating Officer, Water and Field Services, GLWA. “By coordinating these large infrastructure projects, we reduce the impact of construction on local communities. We look forward to continuing into phase two of this particular project, which will improve operations and maintenance of a very large water main that supplies water to three southeast Michigan counties.”


Phase two of the Avon Road infrastructure improvements also includes:

Installation of 2,200 linear feet of 96-inch diameter welded steel pipe, starting on Dequindre Road south of the Clinton River, crossing the Clinton River into Yates Cider Mill 

  • property, and traversing along East Avon Road to 23 Mile Road, terminating at Dequindre Road approximately 300 feet north of 23 Mile Road;
  • Reconstruction and widening of East Avon Road;
  • Construction of a roundabout at the intersection of Dequindre and 23 Mile Road;
  • The replacement of the 61-inch-high by 84-inch-wide corrugated metal pipe (structural plate arch) culvert at the Yates mill race.


The roadway and drinking water infrastructure improvements are coordinated to avoid disrupting new road pavement, as part of GLWA’s commitment to leveraging project resources and to lessen temporary traffic impacts. Additionally, the project will implement permanent roadway and pedestrian enhancements to the areas within the communities that are affected by construction.  


“This project is a great example of public agencies working together to provide the best long-term outcome for our mutual customers while also reducing the short-term impact during construction,” said RCOC Board Chair Andrea LaLonde. “The Dequindre/23 Mile roundabout will enhance traffic and pedestrian safety at the intersection and traffic flow along the corridor.”


The project on East Avon Road, which began in November 2021, is expected to be completed by mid-August 2023. 


The cities of Rochester and Rochester Hills, Shelby Township and the Macomb County Department of Roads are also partners in the multi-phase project.


Further details of the GLWA and RCOC projects can be found online at or by phone at 877-237-7311.




About the Great Lakes Water Authority (GLWA) 

The Great Lakes Water Authority (GLWA) is the provider-of-choice for drinking water services to nearly 40 percent and efficient and effective wastewater services to nearly 30 percent of Michigan’s population. With the Great Lakes as source water, GLWA is uniquely positioned to provide those it serves with water of unquestionable quality. GLWA also has the capacity to extend its service beyond its 88 member partner communities. As part of its commitment to water affordability, the Authority offers a Water Residential Assistance Program to assist low-income households in participating member communities throughout the system. GLWA’s board includes one representative each from Oakland, Macomb and Wayne counties, two representatives from the city of Detroit and one appointed by the Michigan governor to represent customer communities outside of the tri-county area.


About the Road Commission of Oakland County (RCOC) 

RCOC maintains the largest county road system in the state, with more than 2,700 miles of roads. It is a national leader in both road safety and the application of advanced technology to road and traffic management. For more information about RCOC, visit the RCOC website at 

*information provided by the Great Lakes Water Authority

Great Lakes Water Authority
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