Belmont Avenue Bridge[Map · Street View] Concrete arch bridge over Southern State Parkway on Belmont Avenue in Wyandanch Open to traffic Built 1960
Belmont Avenue Bridge[Map · Street View] Stone arch bridge over Southern State Parkway on Belmont Avenue in Wyandanch Open to traffic Built 1960
Bridge Lane Bridge[Map · Street View] Wooden bridge over Long Island Railroad Main Line on Bridge Lane in Peconic Closed to all traffic Built 1885; rehabilitated 1919
Carlls River Bridge[Map · Street View] Concrete arch bridge over Carlls River on NY 27 in North Babylon Open to traffic Built 1932; rehabilitated 1968
Carlls River Bridge[Map · Street View] Concrete arch bridge over Carlls River on Southern State Parkway in North Babylon Open to traffic Built 1933; rehabilitated 1942
Chevron Bridge[Map] Abandoned bailey pony truss bridge over Bridgehampton Race Circuit on Abandoned Bridgehampton Race Circuit Ingress Road Abandoned Built 1957; Abandoned since 1998
Cranberry Hole Overpass[Map · Street View] Girder bridge over Long Island Railroad on Cranberry Hole Road Open to traffic Built 1895; rehabilitated 1982
Dix Hills Road Bridge[Map] Concrete arch bridge over Northern State Parkway on Dix Hills Road in Dix Hills Open to traffic Built 1949
Dix Hills Road Bridge[Map · Street View] Concrete arch bridge over Northern State Parkway on Dix Hills Road in Dix Hills Open to traffic Built 1949
Fire Island Inlet Bridge[Map · Street View] Steel through arch bridge over Fire Island Inlet on Robert Moses State Parkway (NY 908J) Open to traffic Built 1962
Frank Melville Memorial Bridge[Map] Closed-spandrel arch bridge over Setauket Mill Pond on Old Field Road Open to traffic Built 1936
Great South Bay Bridge (NB)[Map · Street View] Steel through arch bridge over Great South Bay on Robert Moses Causeway- Rte 908j Open to traffic Built 1967 as a wider twin to the 1951 Great South Bay bridge
Hampton Bays Swing Bridge[Map] Lost Pratt pony truss bridge over Shinnecock Canal on Road Replaced by a new bridge Built 1892; Replaced 1907
Head of Pond Road Bridge[Map · Street View] Steel stringer bridge over Long Island Railroad Montauk Branch on Head Of Pond Road Open to traffic Built 1913
Horse Block Road Bridge[Map · Street View] Steel stringer bridge over Long Island Avenue and LIRR Main Line on Horse Block Road Open to traffic Built 1940
Japanese Bridge[Map] Closed-spandrel arch bridge over Inlet on Pedestrian Walkway Open to pedestrians only
LI - Montauk Highway Bridge[Map · Street View] Pony/through plate girder bridge over Long Island Railroad - Montauk Branch on Montauk Highway Open to traffic Built 1934
LI - North Ocean Avenue Overpass (1951)[Map] Lost Steel stringer bridge over North Ocean Avenue on Long Island Railroad Replaced by a new bridge Built 1951; Replaced 1979
LI - North Ocean Avenue Overpass (Older)[Map] Lost Brick arch bridge over North Ocean Avenue on Long Island Railroad Replaced by a new bridge Built ca 1850; Replaced ca. 1951
LI - North Sea Road Overpass[Map] Lost Deck plate girder bridge over North Sea Road on Long Island Railroad Replaced by a new bridge
LI - Shinnecock Canal Bridge (Old)[Map] Lost Parker through truss bridge over Shinnecock Canal on Long Island Railroad Replaced by a new bridge Built 1899; Replaced 1931
LI - Shinnecock Canal Bridge (Older)[Map] Lost Pony/through plate girder bridge over Shinnecock Canal on Long Island Railroad Replaced by a new bridge Replaced 1899
LI - Smithtown Trestle[Map · Street View] Deck plate girder bridge over NY 25, Nissequogue River on Long Island Railroad Open to traffic Built 1902
Little East Neck Road Bridge[Map · Street View] Concrete arch bridge over Southern State Parkway on Little East Neck Road in Wyandanch Open to traffic Built 1941; rehabilitated 1960
Ocean Aveue Bridge[Map] Lost Through truss bridge over Quogue Canal on Ocean Avenue No longer exists
Patchogue Lake Bridge[Map] Concrete arch bridge over Patchogue Lake on Roe Blvd. in North Patchogue Open to traffic Built 1920
Ponquogue Bridge (Old)[Map · Street View] Lost Bridge over Shinnecock Bay on Lighthouse Road Replaced by a new bridge Built 1930; Replaced 1986 with main span being dumped at the Shinnecock artificial reef and the approaches being reused as fishing piers; Section of fishing pier damaged by Hurricane Sandy 2012; Aforementioned section removed 2013
Sheep Pasture Road Bridge[Map] Wooden bridge over the Long Island Railroad on Sheep Pasture Road Open to traffic Built 1906
Shinnecock Canal Bridge[Map · Street View] Steel stringer bridge over Canal Road, Shinnecock Canal on NY 27 Open to traffic Built 1960; rehabilitated 1999
Southern State Parkway Bridge[Map · Street View] Concrete arch bridge over Southern State Parkway on NY 109 in East Farmingdale Open to traffic Built 1940; rehabilitated 1961
Southern State Parkway Bridge[Map · Street View] Concrete arch bridge over Southern State Parkway on NY 110 in East Farmingdale Open to traffic Built 1939; rehabilitated 1957
Southern State Parkway Bridge[Map] Concrete arch bridge over Southern State Parkway on NY 110 in East Farmingdale Open to traffic Built 1957
State Boat Channel Bridge[Map · Street View] Bascule bridge over State Boat Channel on Robert Moses State Parkway (Robert Moses Causeway) in Gilgo-Oak Beach-Captree Open to traffic Built 1951; rehabilitated 1994
Sunken Meadow Creek Bridge[Map] Concrete arch bridge over Sunken Meadow Creek on Sunken Meadow State Parkway in Fort Salonga Open to traffic Built 1955
Sylvan Road Bridge[Map] Concrete arch bridge over Carlls River on Sylvan Road in North Babylon Open to traffic Built 1960
Wellwood Avenue Bridge[Map] Concrete arch bridge over Southern State Parkway on Wellwood Avenue in East Farmingdale Open to traffic Built 1960
Wellwood Avenue Bridge[Map] Concrete arch bridge over Southern State Parkway on Wellwood Avenue in East Farmingdale Open to traffic Built 1934; rehabilitated 1960