96-Inch Water Transmission Main Relocation Project

Please email 96inchWaterMain@glwater.org with questions or concerns.

The main objectives of this GLWA project include:

• Relocating the 96-inch water transmission main outside of the limits of private properties between 24 Mile Road and Hamlin Road. This will be accomplished by constructing a relocated 96-inch water transmission main that is approximately 2.5 miles long.
• Improving the operations and maintenance of the 96-inch diameter water transmission main located in Macomb County, Oakland County, and Lapeer County.
• Constructing two (2) new isolation valves on the 96-inch water transmission main to improve isolation capabilities for future operations and maintenance. The new isolation valves will allow GLWA to maintain water services from the 96-inch water transmission main while performing future system operations and maintenance.
• Continuing to provide essential, uninterrupted water services throughout construction utilizing temporary facilities.

Construction of the GLWA water transmission main is divided into three phases:

• Phase 1 – Avon Road Improvements: East Avon Road between the intersection of Dequindre Road and Avon Road and the intersection of Dequindre Road and 23 Mile Road (COMPLETED)
• Phase 2 – Dequindre Road: In two segments:
  • South Dequindre Road, between Avon Road and Hamlin Road (ONGOING)
  • North Dequindre Road, between Macomb Orchard Trail and 23 Mile Road (2024-2025)
• Phase 3 – Macomb Orchard Trail and Implementation: Macomb Orchard Trail and 24 Mile Road and several remote sites (FUTURE)

The project facilities and locations are shown on the Project Overview Schematic.

See response above. Updates to the construction schedule will be posted on the project webpage.

GLWA continues to coordinate with member partner communities, Macomb County, Oakland County, Lapeer County, utility providers, regulatory agencies, and local businesses, and residents to minimize planned disruptions. Stakeholders continue to be notified in advance of construction. GLWA and the Road Commission for Oakland County (RCOC) closely coordinated the Phase 1: Avon Road Infrastructure Improvements construction. GLWA’s 96-inch water transmission main and roadway enhancements included in the Phase 1: Avon Road Infrastructure Improvements are complete.

GLWA is coordinating with all impacted communities served by the 96-inch water transmission main to maintain uninterrupted water services during construction.

GLWA is committed to coordinating with other major infrastructure projects to lessen temporary traffic impacts and to implement permanent roadway and pedestrian enhancements to the areas within the communities that are affected by construction.

GLWA is working closely to coordinate with the Macomb County Department of Roads and the Road Commission for Oakland County on the design of several roadway improvements as part of this project, including:

• Roadway widening of East Avon Road by adding a center turn lane (COMPLETE)
• A new roundabout at the intersection of 23 Mile Road and Dequindre Road with related pedestrian crossing safety improvements (COMPLETE)
• Intersection improvements at Dequindre Road and School Road by adding a designated center turn lane
• Roadway reconstruction to current standards along Dequindre Road between East Avon Road and Hamlin Road
• Roadway widening of Dequindre Road between 23 Mile Road and the Macomb Orchard Trail by adding a designated center turn lane

Temporary access roads for local traffic only will be continuously provided during construction. Direct front access will be provided to local residents, businesses, and institutions during construction.

• Trees will be removed and replaced within the limits of work along the Macomb Orchard Trail between Dequindre Road and 24 Mile Road. A tree survey was performed to catalog tree species, size, and condition.
• The Macomb Orchard Trail will be temporarily closed between Dequindre Road and 24 Mile Road for Phase 3 construction and subsequent trail restoration in the trail corridor.
• Trail traffic will be temporarily rerouted using existing sidewalks along 24 Mile Road and Dequindre Road.
• The paved portion of the Macomb Orchard Trail will be removed and replaced as part of the 96-inch water transmission main construction restoration.
• A 30-feet-wide “tree free zone” is planned above the new, relocated 96-inch water transmission main. Outside of this “tree free zone”, trees that are removed for construction will be replaced at approximately a 1:1 ratio.
• Trail landscaping and hardscaping enhancements are planned for the Macomb Orchard Trail restoration between Dequindre Road and 24 Mile Road.

There are no planned disruptions to GLWA transmission system water services and fire-fighting supply during project construction. Rerouted water supply paths will be utilized during construction to avoid disruptions to water services. Hydraulic computer modeling and field testing are being conducted in advance of Phase 3 construction to confirm that planned changes in water supply paths do not materially affect water services and water quality.

This project will improve GLWA’s ability to perform operations and maintenance of the 96-inch water transmission main, valves, and outlets.