Demarcation Lines Between Inland and Marine District

A Marine Waters Fishing license is required downstream of the indicated lines or in areas designated as being entirely in the marine district.  Unless indicated below, the demarcation line is the first bridge upstream from the mouth.

Waterbody Location of Demarcation Line
Alewife Cove, New London-Waterford   Entirely in marine district.
Back River, Groton   Entirely in marine district.
Beebe Cove, Groton   Entirely in marine district.
Blackhall River, Old Lyme   Route 156.
Branford River, Branford   Montowese St.
Bride Brook, East Lyme   First railroad crossing.
Bruces Brook, Bridgeport-Stratford   Stratford Avenue
Byram River, Greenwich   First railroad crossing.
Clinton River, Clinton (Indian River)   Route1.
Connecticut River, Old Lyme-Old Saybrook   Interstate 95 bridge.
Cove River, West Haven   Shore  Route 122.
Duck River, Old Lyme   Entirely in marine district.
East Creek, Guilford   The gates at Guilford dock.
East River, Guilford-Madison   Route 1.
Farm River, East Haven   Route 142.
Five Mile River, Darien-Norwalk   Route 136.
Four Mile River, E. Lyme-Old Lyme   First railroad crossing.
Goodwives River, Darien   Entirely in marine district.
Graniteville Brook, Waterford (Millstone Brook)   First railroad crossing.
Hammonasset River, Clinton-Madison.   Route 1
Hammonds Cove, Waterford.   Entirely in marine district.
Horse Neck Brook, Greenwich.   Junction with mouth of harbor.
Housatonic River, Milford-Stratford.   Merritt Parkway.
Indian Harbor, Greenwich.   First railroad crossing.
Indian River, Milford,   Route 162.
Jordan Cove, Waterford.   First railroad crossing.
Lieutenant River, Old Lyme.   Route 156.
Menunketesuck River, Westbrook.   500 ft. north of Route 1.
Mianus River, Greenwich.   Dam north of Boston Post
Mile Creek, Old Lyme.   Entirely in marine district.
Mill River, Fairfield.   Dam at Harbor
Mill River, New Haven.   Tide gates at State St.
Muddy Brook, Westport.   Route 136.
Mumford Cove, Groton.   Entirely in marine district.
Mystic River, Stonington-Groton.   500 ft. north of Route 1.
Neck River, Madison.   Route 1.
Negro Brook, Stratford.   Route 110.
Niantic River, East Lyme-Waterford. Golden Spur Bridge, Route 1
Noroton River, Darien-Stamford.   Boston Post Road.
Norwalk River, Norwalk.   Wall St.
Oyster River, Milford.   Route 162.
Oyster River, Old Saybrook.   Route 1
Palmer’s Cove, Groton.   Entirely in marine district.
Pataganset Cove, East Lyme.   First railroad crossing.
Patchogue River, Westport.   Route 1.
Pawcatuck River, Stonington.   500 ft. north of Route 1.
Pequonnock River, Bridgeport North Avenue
Pequot-Sepos Cove, Stonington.   500 ft. north of Route 1.
Poquonock River, Groton.   500 ft. north of Route 1.
Pumpkin Ground Brook,   Stratford. Route 110.
Quiambaug Cove, Stonington.   500 ft. north of Route 1.
Quinnipiac River, New Haven.   Route 17.
Rippowam River, Stamford.   First railroad crossing.
Rooster River, Bridgeport.   North Avenue
Sasco Brook, Westport.   Buckleys Mill Dam above Route1.
Saugatuck River, Westport.   Kings Highway.
Shaws Cove, New London.   Entirely in marine district.
Stonington Harbor, Lambert Cove and Quanaduck Cove, Stonington.    500 ft. north of Route1.
Stony Brook, Westport.   Riverside Avenue
Thames River, Groton-New London.   500 ft. north of Route 1.
Three Mile River, Old Lyme.   First railroad crossing.
Tokeneke Brook, Darien.   Old Farm
Wepawaug River, Milford.   Route 162
Wequetequock River, Stonington   500 ft. North of Route 1A.
West River, Guilford.   Route 146.
West River, West Haven.   Tide gates at Orange Avenue
Winthrop Cove, New London.   Entirely in marine district.


Content last updated November 2021