The Providence River is a tidal river in the U.S. state of Rhode Island. It flows approximately 8 miles (13 km). There are no dams along the river’s length, although the Fox Point Hurricane Barrier is located south of downtown, to protect the city of Providence from damaging tidal floods. The southern part of the river has been dredged at a cost of $65 million in federal and state funds to benefit nearby marinas and commercial shipping interests.