Construction Impacts

Projects of Note

Crack-sealing Work

Taking place this week on Madison Street, Miller Avenue, State Street, Woodbury Avenue and Gosling Road.

Willard Avenue 

On Friday, September 12, the contractor will be applying weed control horticultural vinegar -- which causes no harm to people, pets or other animals -- to the areas that will be hydroseeded next week. After allowing the vinegar to do its work this weekend, the contractor will rake out the dead weeds before hydroseeding to promote grass growth. For the original project preconstruction meeting presentation and video recording, more information and to sign up for future email updates, visit the project page.

Development-related Work

  • 2 Russell St – Development starts installing the new water main.

  • Green St – Development starts installation of Green St water main

Campus Drive Athletic Fields

Quirk will begin construction of the new field starting the week of Sep 22.

Pinehurst Street

MAC Construction is installing a new 8" water main.  The first step, that lasts approximately 1 week, is to install a temporary water main and connect houses from the old main to the temporary one. There will be temporary, 30-minute water service interruptions with notice given a minimum of 2 hours in advance. Once the new water main is installed that process will take place again to switch service to the new water main. Flaggers will be in place to direct any temporary interruptions in traffic flow.

Vaughan Mall Reconstruction

Week of September 15: Excavation for communication wiring relocation. Temporary waterline service connections are possible. For safety, pedestrians are asked to comply with any barricades, sidewalk closure signs and directions from flaggers to help them navigate around the work areas.  A public information meeting was held July 7, 2025 to discuss options for the landscape redesign of Vaughan Mall once the underground infrastructure is replaced. A pre-construction meeting on that work, scheduled to start after Labor Day, was held on August 20. For the meeting presentations and video recordings, more information and to sign up for future email updates, visit the project page.

Islington Street

Week of September 15: Dover to Cornwall and Cornwall to Bridge Street: striping and parking spaces will be painted overnight, Wed Sep 17. Crosswalks will be done on Thurs Sep 18. Bridge Street lot landscaping is complete. Starting Wed Sep 17, State Street sewer and drainage work requiring a parking ban and detour is anticipated, impacting the block between Middle Street and Summer Street 7am-4pm, daily for about 10 days. A detour will be in place to accommodate contractor operations. Flaggers and project personnel will be on site to facilitate traffic flow. For the project overview: March 19, 2024 public meeting presentation and video recording, additional background information and to sign up to receive weekly updates on the project, visit the project page. 

Bartlett Street

TRAFFIC ALERT: As part of the design, the four-way stop at Thornton and Bartlett Streets has been REPLACED with a two-way stop. There are stop signs now on Thornton Street, not Bartlett. Please be extra cautious because of this permanent change.. The Morning Street scope of work is currently on HOLD and will be reevaluated along with future phases of work in the Creek Neighborhood. For the March 27, 2024 public meeting presentation and video recording, additional background information and to sign up to receive weekly updates on the project, visit the project page.

Maplewood Avenue Bridge

Week of September 15: Work continues within the bridge closure limits on the south side. Construction activity includes: installation of granite curbing on the south side of the site and formwork for reconstruction of the southern rail support slab. The balance of the bridge work will continue on the south side through November as the contractor replaces the sidewalks and railings. The outbound lane will remain closed throughout the summer. Pedestrian access will be maintained at all times via the northern sidewalk. For detour options, the meeting presentation, design plans, additional background and to sign up to receive weekly updates on the project, visit the project page.

Union Street

Paving is complete. Weeds will be managed and loamed areas will be re-seeded in the fall. Following up on punchlist items. For more information in the April 2, 2024 meeting presentation and video recording and to sign up to receive weekly updates on the project, visit the project page.

Middle/Miller/Summer Street Intersection Signals 

Construction has started with site conduit and sidewalk work expected to be completed by mid-October. Installation of the traffic signal equipment is estimated for December 2025 and will be dependent on the equipment manufacturer’s schedule. Electric Light is the contractor. For more information, visit the project page. Please note that the pedestrian crossing lights are not functional at this time. Their replacement is part of the bigger project. As a reminder to pedestrians, at a crossing where there are no pedestrian signals, pedestrians must obey the red, yellow, or green signal lights, crossing when traffic in their intended path is stopped. Driver must yield to pedestrians at all times.

Hanover Garage

The Hanover Garage is in year two of a three-year renovation. Questions? Contact the Parking Office at 603-610-7257. Go to the Hanover Garage Project page for more information.

DPW Facilities Improvements

The construction crew has started placing the steel framing for the expanded facilities behind the building at 680 Peverly Hill Road. Work will continue 7 days a week (including Saturday and Sunday), 7 am to 6 pm, through November to complete the work before the end of the construction season. The work does not affect access to the Recycling Center. For more information, go to the project page.

NHDOT Lafayette Road (Route 1)

NH Department of Transportation (NH DOT) presented updated plans for its Lafayette Road (Route 1) Corridor Improvement Project to the City Council on May 5. For background visit the Project Website (Portsmouth 29640) with the full US Route 1 Corridor Plan. NH DOT also advises that anyone with comments or concerns about this project should contact David Smith, P.E. - Project Manager, NH Department of Transportation | P.O. Box 483, Concord NH 03302