tunnelling-journal (1)
tunnelling-journal (1)
  • Home
  • Print
    • Subscribe
    • Tunnelling Journal
    • Breakthrough
    • ITA Activity Report
    • A&NZ Journal
    • WTC Preview
    • Media Kit
  • Digital
    • Newsletter
    • E-Shots
    • TJ Digital edition
    • Products Page
    • Media Kit
  • Conferences
    • BTS Conference and Exhibition
    • Cutting Edge 2022
  • Buyer’s Guide
  • Events Diary
  • Jobs
  • About Us
  • Contact Us
  • Podcast

Home > Narragansett Bay Commission issues Pawtucket Tunnel notice to proceed

Narragansett Bay Commission issues Pawtucket Tunnel notice to proceed

Tris Thomas

Written by Tris Thomas on 13/01/2021 in News

Tagged:

As part of the program to improve water quality in Narragansett Bay, the Narragansett Bay Commission has issued to CB3A joint-venture notice to proceed with the work on the Pawtucket Tunnel Project. This joint venture comprises CBNA, a US-based subsidiary of Bouygues Travaux Publics, and local civil works contractor Barletta Heavy Division. The contract is worth €394M (Bouygues Travaux Publics’ share is €256M). 

Located in the Rhode Island Delta, approximately 75km south of Boston, the Pawtucket Tunnel Project is the first part of phase 3 of the Bay’s water management modernization program (Phase IIIA). CB3A is responsible for the design and construction of the tunnel and its ancillary structures.

The 3.5km long (11,600ft) main tunnel will be excavated along the Seekonk River using a TBM specially designed to accommodate the varied geology of the route. Its 9m (30ft) internal diameter will enable it to collect and store a significant proportion of the region’s rainwater, waste water and industrial water pending treatment by the water treatment plant.

The project also involves the excavation of three main shafts, one of which will serve as a pumping station and supply the existing treatment plant. 4 drop shafts will also be built to collect water, as well as their connecting tunnels to the main tunnel.
Carried out in the heart of an urban residential area, the project will be subject to measures designed to protect the environment and minimize the impact of the work on local residents.

CB3A will be supported by engineering company Aecom to carry out the design and will also promote local employment and the integration of local businesses when organizing the work.
The contract is for a period of 48 months.

The three-phase CSO program kicked off in 2001 with construction of a three-mile long, 26ft wide deep-rock tunnel under Providence to store stormwater runoff. Phase II, completed in 2015, added CSO interceptors to the Providence Tunnel, several sewer separation projects, and a wetlands storage facility. The final phase is focused on the construction of the Pawtucket Tunnel underneath the communities of Pawtucket and Central Falls. The tunnel, which will be is designed to store 58.5 million gallons of combined sewer overflows.

The tunnel is expected to be operational in 2026.

Screenshot 2020 11 04 at 16.41.24

 

 

Comments:

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Search

Digital Edition

More Like This

20/03/2023

Second TBM breaks through on Broadway Subway

Second TBM breaks through on Broadway Subway

Vancouver’s $1.728bn Broadway Subway project has reached yet another milestone with the second of two 6m diameter Herrenknect TBMs, Phyllis,…

08/03/2023

Macau’s first EPBM breaks through

Macau’s first EPBM breaks through

February 20th, 2023 saw Macau’s first small diameter EPBM “CREC 1076” breaking through, laying a solid foundation for the timely…

19/04/2023

Hudson Tunnel Project announces revised contract packages

Hudson Tunnel Project announces revised contract packages

The Civil Works portion of the Hudson Tunnel Project will now be divided into four contract packages, rather than the…

  • Contact Us
  • Media Kit
  • Magazine Archive

Newsletter

The latest from the Tunneling Journal direct to your inbox.

Social



Enquiries

TGS Media Ltd
The Old Library
Webster House
Dudley Road
Tunbridge Wells
TN1 1LE
United Kingdom

© Tunnelling Journal. All Rights Reserved. Privacy Policy / Terms & Conditions. Admin

We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.OkRead more