Naugatuck River

Naugatuck River
Great River, Nawcatuck
Naugatuck River in Oakville from Whitestone Cliffs Trail road walk over Frost Bridge - CT Route 262
Native nameNeggutuck (Algonquin)
Location
CountryUnited States
StateConnecticut
RegionLitchfield County and New Haven County
CitiesTorrington, Litchfield, Harwinton, Thomaston, Watertown, Waterbury, Naugatuck, Beacon Falls, Seymour, Ansonia, Derby
Physical characteristics
Source 
  locationConfluence of West and East Branches Naugatuck River in Torrington, Connecticut
  coordinates41°47′49″N 073°07′00″W / 41.79694°N 73.11667°W / 41.79694; -73.11667
  elevation526 ft (160 m)
MouthConfluence with Housatonic River
  location
Derby, Connecticut
  coordinates
41°18′49″N 073°04′50″W / 41.31361°N 73.08056°W / 41.31361; -73.08056
  elevation
3 ft (0.91 m)
Basin features
Tributaries 
  leftEast Branch Naugatuck River, Leadmine Brook, Spruce Brook, Hancock Brook, Mad River, Hockanum Brook, Bladens River
  rightWest Branch Naugatuck River, Northfield Brook, Branch Brook, Steele Brook, Hop Brook, Little River, Long Meadow Pond Brook

The Naugatuck River is a 40.2-mile-long (64.7 km) river in the U.S. state of Connecticut. Its waters carve out the Naugatuck River Valley in the western reaches of the state, flowing generally due south and eventually emptying into the Housatonic River at Derby, Connecticut and thence 11 miles (18 km) to Long Island Sound. The Plume and Atwood Dam in Thomaston, completed in 1960 following the Great Flood of 1955, creates a reservoir on the river and is the last barrier to salmon and trout migrating up from the sea.