Water Street Sewer Interceptor Replacement Project

The Town of Plymouth has entered into a construction contract with Northern Construction Service, LLC of Palmer, MA, to complete the Water Street Sewer Interceptor Replacement Project.

The existing Water Street Sewer Interceptor is a 30-inch diameter reinforced concrete (RCP) sewer interceptor that was originally constructed in 1969 and serves as the primary pipeline for conveying wastewater flows from downtown Plymouth to the Water Street Pump Station. The interceptor is approximately 1,400 linear feet and is located within Plymouth Harbor. 

In 2021, the Town appropriated funds for the design and construction of the Water Street Sewer Interceptor Replacement project through the American Rescue Plan Act (ARPA) funding program. The Town retained Environmental Partners in the Fall of 2021 to complete the design and permitting for the interceptor replacement work. The replacement of the existing 30-inch RCP interceptor with a deep open-cut combined interceptor and gravity sewer on Water Street was selected as the most cost-effective solution that would best adhere to the Town's desired construction schedule of completing all work by the Summer of 2023. Construction is anticipated to begin on December 1, 2022.

A public informational meeting was held on November 10, 2022 where Town staff and Environmental Partners provided an overview of the project, including the anticipated construction schedule, and possible impact on the area. See the presentation (PDF).

Construction Updates

Construction began the week of December 8, 2022, near the rotary on Water Street. 

During construction, please expect to be inconvenienced by traffic delays, detours, uneven/settling trenches, parking restrictions, and elevated noise levels. Please follow the detour signs that are installed along the project area. Traffic detours will be modified as construction progresses towards the State Pier. No detour patterns are currently in place.

A public informational meeting was held on May 19, 2023 where Town staff and Environmental Partners provided an update on construction and an anticipated schedule for upcoming work. See the presentation (PDF).

At this time, no construction activities are occurring on site.  Construction is tentatively planned to resume in the fall of 2023, after Thanksgiving.

  1. Week Ending June 30, 2023

Construction activities for this week consisted of the following:

  • Northern finished prepping the subgrade for pavement restoration.
  • Pavement restoration, sidewalk restoration, and line striping along Water Street from the rotary towards Chilton Street was completed on Wednesday, June 28.
  • Northern's on site testing company (Thielsch Engineering) performed compaction testing along Water Street.
  • Northern continued demobilization of equipment and materials from the job site, as well as performed general site cleanup around the work zone and in the laydown area in the Memorial Hall parking lot. All equipment and materials will be removed from the job site by end of day Friday, June 30.
  • Traffic on Water Street was restored to two lanes of traffic following pavement restoration. 
  • Construction signage and message boards for the project will be removed this week.
  • Erosion controls will be removed as part of site cleanup this week.
  • Businesses on Water Street remained open to the public during construction activities. 

No construction activities are planned for the summer season. Northern anticipates to resume work on site during the fall of 2023 after Thanksgiving.

Water Street compacting subgrade for paving Water Street paved and lined

  1. Week Ending June 23, 2023
  1. Week Ending June 16, 2023
  1. Week Ending June 9, 2023
  1. Week Ending June 2, 2023
  1. Week Ending May 26, 2023
  1. Week Ending March 3, 2023
  1. Week Ending February 24, 2023
  1. Week Ending February 10, 2023
  1. Week Ending February 3, 2023
  1. Week Ending January 27, 2023
  1. Week Ending January 13, 2023
  1. Week Ending January 6, 2023