The City of Dunwoody is working with DeKalb County on a water main pipeline replacement project expected to begin construction the week of March 16.  A portion of the water main infrastructure improvements made by DeKalb County will take place on Mount Vernon Road between Ashford Dunwoody Road and Vernon Oaks Drive, and traffic changes and temporary lane reductions are expected throughout the construction period.

The project is part of a rehabilitation program by DeKalb County to address the aging water pipelines within Dunwoody and throughout the county.  The Mount Vernon Road project will involve the replacement of two aging water mains with one new 16-inch diameter main.

These crucial infrastructure improvements present the city with an opportunity to make much needed road surface and pedestrian improvements along the Mount Vernon Road corridor, according to a press release from the city.  Subsequent to the installation of the new water main, the city will resurface this entire section of Mount Vernon Road and also construct new sidewalks on the south side of Mount Vernon Road between Dunwoody Village Parkway and Vernon Oaks Drive.

The work is expected to be complete within seven to nine months.

The DeKalb County water main is located along the south side of Mount Vernon Road, adjacent to existing curb and sidewalks. The majority of the water main replacement work will primarily run along the east-bound traffic lanes.  To minimize the traffic impacts much of the new main will be installed on the south shoulder of the road east of Dunwoody Village which will necessitate some tree removal.  Periodically, traffic will be reduced to one lane to allow for loading and unloading materials.

Access to local businesses and residential roads and driveways will be maintained throughout the construction process, and the city will work with the contractor to limit potential disruptions to resident and commuter schedules and minimize potential impacts to traffic operations on Mount Vernon Road. Most of the construction will occur on weekdays and lane closures will be limited to the hours of 9 a.m. to 4 p.m.  Night work is not anticipated due to the number of residences directly adjacent to the project.

Project progress information will be posted on the city’s website ( and on the Mount Vernon Water Main Replacement project web page located at