A stretch of the Duck River in Maury County. (Photo: John Partipilo)

A pipeline supplying water from the Cumberland River to the fast-growing Maury and Williamson counties is feasible, but it could cost up to $1.9 billion in 2025 dollars, according to a feasibility study released this week by the Mallory Valley Utility District.

The study examined the projected costs, needs and construction timeline for approximately 30 miles of pipeline that would connect the Harpeth Valley Utilities District, which draws its water from the Cumberland, to the water utility in Columbia by 2033.

The pipeline is one of several pathways under consideration to provide reliable, long-term water supply for southern Middle Tennessee. More than 250,000 residents in the area are currently served by water withdra

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