On July 29, 2024, construction of the New York-Westchester water supply tunnel was announced to commence. The tunnel is 3.2 km long and 8.3 m in diameter, at a cost of US$1.9 billion. This tunnel is the largest new water supply tunnel project in the region since the 1940s.

This new tunnel is expected to be put into operation in 2035, conveying 2.6 billion gallons of water per day to meet the needs of the growing population of New York City and Westchester County.