Central Avenue North Water Improvements

Central Avenue North Water Improvements

updated: 9/17/2021

Daytime work resumes, Monday Sept. 20

The Central Avenue North Water Improvements contractor will shift back to daytime work beginning Monday, Sept. 20.

For the next few weeks, the contractor is focused on installing water main pipes from Lowell Avenue to Abbey Sawyer Memorial Drive.

Detour for southbound Central Avenue traffic

To help reduce traffic queues and wait times through the project area, a detour will be in operation during work hours. The detour is anticipated to remain in place for about three weeks.

Southbound Central Avenue traffic will be diverted via Lowell Avenue or Abbott Street to Mount Vernon Street to rejoin Central Avenue via Reservoir, Ash, Hough or Sixth streets, highlighted green in the below map. This traffic diversion will require temporary parking restrictions posted along portions of Mount Vernon Street to accommodate larger vehicles and transit buses.

Northbound traffic will continue to travel through the work zone, highlighted in blue in the below map. Motorists who can avoid the area entirely are encouraged to do so.

Map of work zone and detour area

Central Ave North Water Main detour 9_24_21
The area marked in blue is the current work area for the Central Avenue North Water Improvements project, with Central Avenue marked in yellow. Northbound Central Avenue traffic will travel through the construction zone, while southbound Central Avenue traffic will be detoured around the project via Lowell Avenue, Mount Vernon Street and Ash Street, marked in green above.

Project overview

The Central Avenue North project will replace two sections of water mains. One is a 133-year-old 14-inch water main from Lowell Avenue to Abbey Sawyer Memorial Drive, a critical piece of infrastructure of the City of Dover’s water system. The other is an undersized six-inch water main from Glenwood Avenue to Lowell Avenue installed in 1927. Both mains will be replaced with new 16-inch ductile iron pipes expected to last the next 100-150 years. The project is anticipated to be substantially complete by mid to late December. A complete street paving overlay will occur next spring.

The project will significantly improve reliability and fire flow capacity. The improvements will also provide better interconnection between the City’s two pressure zones, increasing the water system’s reliability throughout the City. 

Design work on the project began after the City Council in May 2020 authorized Underwood Engineers to perform the work. Underwood Engineers will also provide day to day oversite of the project for the City of Dover. 

The project went out to bid in April 2021, and the City received three bids. At its June 23, 2021 meeting, the City Council selected the lowest responsive and responsible bid from N. Granese & Sons, Inc. of Salem, Massachusetts, as the contractor.  

The project is expected to create traffic backups in and near the project area. At a July 27, 2021, neighborhood meeting held at City Hall, Director of Community Services John Storer told attendees he understands there will be “huge inconvenience” for residents and businesses, but the project is needed to replace critical infrastructure before it fails. 

Storer encouraged residents and businesses in the construction area with questions or concerns to contact Deputy Community Services Director Bill Boulanger at b.boulanger@dover.nh.gov or 516-6450. Boulanger will be managing the project for the City.

Email updates

The City of Dover will send out frequent project updates via email. To sign-up for these updates, visit https://bit.ly/dovernewsletters, add “Project update: Central Avenue North Water Improvements Project” to your current email subscription list. 

Recent email updates: