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Home > CBNA JV set for Pawtucket Tunnel project contract award

CBNA JV set for Pawtucket Tunnel project contract award

Tris Thomas

Written by Tris Thomas on 04/11/2020 in News

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The Narragansett Bay Commission Board of Commissioners has voted to award the CSO Phase III A/Pawtucket Tunnel project to the CBNA team consisting of Bouygues/Barletta/AECOM. A spokesperson for the Client told TJ: “Currently the contract documents are yet to be signed, as there are additional requirements for the contractor including MBE/WBE/DBE participation and EEO requirements set forth by the State of Rhode Island.”

The CSO Phase III A/Pawtucket Tunnel project is the third and concluding phase of a comprehensive program to alleviate CSO discharges into Narragansett Bay. The tunnel is 11,600ft (3.5km) long, and will have a diameter of 30ft (9m) and will be bored at a depth of 140ft to 180ft (42m-54m) below grade by TBM, which will concurrently line the tunnel through rock with a pre-cast segmental concrete lining.

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 completed in 2025, and be operational in 2026 at an anticipated construction cost of $245M.

Screenshot 2020 11 04 at 16.41.24

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