Flat River (South Branch Pawtuxet River tributary)

The Flat River is a river in the U.S. state of Rhode Island. It flows approximately 11 km (7 mi). There are no dams along the river's length.

Course

The river is formed in Coventry by the confluence of Sawmill and Pine Swamp Brooks. The river flows east to converge with the Big River to form the South Branch Pawtuxet River in the area now flooded by the Flat River Reservoir.

Below is a list of all crossings over the Flat River. The list starts at the headwaters and goes downstream.

McCuster Brook is the Flat River's only named tributary, though it has many unnamed streams that also feed it.

Point Judith Pond	Saugatucket River

Little Narragansett Bay (Pawcatuck River Watershed)	Ashaway River Beaver River Chipuxet River Flat River (Wood) Green Fall River Pawcatuck River Queen River Usquepaug River Wood River
Thames River Watershed	Moosup River

Pettaquamscutt River Watershed	Mattatuxet River Pettaquamscutt River
Potowomut River Watershed	Hunt River Potowomut River
Providence River Watershed	Abbott Run Big River Blackstone River Branch River Carr River Chepachet River Chockalog River Clear River Congdon River Flat River (South Branch Pawtuxet) Mill River Millers River Mishnock River Moshassuck River Moswansicut River Nipmuc River Nooseneck River North Branch Pawtuxet River Pascoag River Pawtuxet River Peters River Pocasset River Ponaganset River Providence River Seekonk River Sevenmile River South Branch Pawtuxet River Stillwater River Ten Mile River West River Wilde River Woonasquatucket River
Sakonnet River Watershed	Maidford River Maiford River Quaket River Sakonnet River
Warren River Watershed	Barrington River Palmer River Runnins River Warren River
Others	Annaquatucket River Kickamuit River Maskerchugg River Pine River