Bay Park Conveyance Project tunnelling and pipeline completed

The project aims to enhance water quality and storm resilience in Long Island's Western Bays.

Upasana Mukherjee February 08 2024

The Bay Park Conveyance Project in the US state of New York has marked a major milestone with the completion of its tunnelling and pipeline phase. 

The phase saw the construction of 11 miles of tunnels and pipeline. 

The new pipeline was constructed using low-impact tunnelling technologies and the slip lining of an existing, century-old aqueduct pipe that had been out of use since the 1960s.  

A tunnelling technique was used to build conduits for the new pipeline from South Shore WRF to Sunrise Highway in Rockville Centre and Cedar Creek’s ocean outfall in Wantagh. 

This methodology minimised surface disturbance, reduced costs, and accelerated the construction timeline. 

The Bay Park Conveyance Project is estimated at approximately $500m. 

The project is a collaborative initiative between New York State and Nassau County.  

The New York State Department of Environmental Conservation (DEC) has expedited the construction process. 

New York State DEC commissioner Basil Seggos said: “Achieving this milestone on the massive Bay Park Conveyance Project marks a major step forward in New York State’s sustained efforts to reduce water pollution, foster coastal resilience, and improve the health of Nassau County’s Western Bays, and I commend DEC’s expert team for their tireless efforts to advance this critical project.” 

To date, the project has received $158.6m in state and state-directed grants, alongside comprehensive low-cost financing by the Environmental Facilities Corporation.

It aims to reduce nitrogen pollution and improve water quality and storm resilience in Long Island's Western Bays by upgrading wastewater management infrastructure. 

The new conveyance system is expected to undergo testing this year and become fully operational by 2025. 

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