US Army Corps of Engineers
New England District

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Fivemile River Harbor Navigation Project

Fivemile River HarborFivemile River Harbor is located at the mouth of Fivemile River along the Darien-Norwalk town line. The harbor is used chiefly for recreational boating.

The project at Fivemile River Harbor is an eight-foot-deep, 100-foot-wide channel extending almost one mile from the mouth of Fivemile River to the head of the harbor. It was completed in 1910.