Third Sewer Force Main

The Town is implementing a sewer project that will include the installation of a new sewer force main that will connect the Sea Street Pump Station (SSPS) to the Surfside Wastewater Treatment Facility (WWTF). The information below seeks to provide residents with answers to some basic questions (WHO, WHAT, WHERE, WHEN & WHY) on the project. The question of HOW will be addressed later in this series of informational articles that will appear in the local newspaper and be posted here.

What is the project?

Per recent approval of the force main route by the Select Board, the project will include the installation of a new sewer force main that connects the Sea Street Pump Station (SSPS) to the Surfside Wastewater Treatment Facility (SSWWTF). The project will also include upgrades to water, sewer, and drain utilities along the Town-approved sewer force main route.

Why is the project needed?

Two sewer force mains currently connect the SSPS and the SSWWTF: a 20-inch force main installed in 1981, and a 16-inch force main installed in the 1930s and later rehabilitated in 1983-1984. Following the catastrophic failure of the 16-inch force main during the Winter of 2018, the Town conducted a study on the pipe to confirm its condition. The study concluded that due to the age and condition of the 16-inch force main, it should no longer be relied upon to convey all the wastewater flows from the SSPS to the SSWWTF without an additional backup pipe. As a result of the assessment, the Town is proceeding with the design and construction of  a third force main from the SSPS to the SSWWTF, which will allow the Town to rehabilitate  the existing aging 20-inch force main and retire the existing 16-inch force main.

Where are the project areas?

Streets included within the project area are listed to the right. A figure of the Town-approved sewer force main route is attached for reference. 

WHEN WILL THE PROJECT HAPPEN?

The project is currently in the preliminary design and field investigation phase with advertisement and public bidding scheduled for Spring 2021. The bidding process will result in a competitive price for the construction work, which is expected to begin in the Fall of 2021. Survey work and field investigations consisting of soil borings will begin on October 6, 2020.

Who is coordinating the project?

  • Town of Nantucket – Town Administration & Sewer Department
  • Owner’s Project Representative – Hazen and Sawyer
  • Design Engineer – Environmental Partners Group, Inc.
  • Construction Contractor – TBD from competitive bid process

The Town is currently coordinating the Public Outreach program, which will consist of written information distributed via a series of news articles (similar to this) and posted on the Town’s website. Another outreach component will be public meetings to discuss project information and smaller neighborhood or association-specific meetings to discuss project-specific items that are more unique to individual areas along the force main route. Please email any questions to sewerproject@nantucket-ma.gov or call (508)-228-7200 x 7800

  • APPROXIMATE LENGTH OF PROPOSED SEWER FORCE MAIN: 18,253 LF
  • APPROXIMATE LENGTH OF PROPOSED WATER MAIN REPLACEMENT: 5,150 LF
  • APPROXIMATE LENGTH IF PROPOSED GRAVITY SEWER REPLACEMENT: 3,920 LF
  • APPROXIMATE LENGTH OF PROPOSED STORM DRAIN REPLACEMENT: TBD
  • STREETS INCLUDED: Sea St., 

Presentations