Barnhart Island Road Bridge[Map] Warren through truss bridge over South Channel St. Lawrence River on Barnhart Island Road in Massena Open to traffic Built 1956; rehabilitated 1997
Bog River Bridge[Map · Street View] Concrete arch bridge with stone facing over Bog River on NY 421 Open to traffic Built 1925; rehabilitated 1997
Bridge Street Bridge[Map] Through truss bridge over Grasse River on Bridge Street in Hermon Derelict/abandoned Built 1907; rehabilitated 1971
Chisholm Road Bridge[Map] Lost truss bridge over Oswegatchie River on Chisholm Road in Antwerp. No longer exists
Coopers Falls Bowstring Bridge[Map] Lost Bowstring through truss bridge over Oswegatchie River on Lost road in De Kalb. Collapsed 2 years after it was built and was never replaced Built in 1870 by the King Bridge Company; collapsed in 1872
De Kalb Village Iron Bridge[Map] Lost Bowstring through truss bridge over Oswegatchie River on County Road 17 in De Kalb. Replaced by a new bridge Built in 1874 by the King Bridge Company; replaced in 1966
Depot Street Bridge[Map · Street View] Warren Through truss bridge over Deer River on Depot Street 9CR 92A) in Helena Intact but closed to all traffic in August 2020; replacement to begin construction in 2021 Built 1931
Dry Bridge Road Bridge[Map] Wooden bridge over CSX Transportation on Dry Bridge Road in Norwood Open to traffic Built 1900; rehabilitated 1970
Eisenhower Lock Tunnel[Map] Tunnel under Wiley Dondero Canal on Barnhart Island Road Open to traffic Built 1963
Elm Creek Bridge[Map] Lost through truss bridge over Elm Creek on East Dekalb Road in Hermon No longer exists Built 1884; rehabilitated 1946; replaced 2000
Falls Island Bridge[Map · Street View] Bowstring pony truss bridge over Grasse River on the Grasse River Heritage Trail Open to pedestrians Built 1870 by the King Bridge Co.; Rehabilitated for pedestrian use 2007
Falls Island Sluiceway Bridge[Map] Beam bridge over Abandonded Sluice on Pedestrian Path Open to pedestrians only Built circa 1900; Rehabilitated for pedestrian use 2007
Fraser Road Bridge[Map] Through truss bridge over Oswegatchie River on Fraser Road in Gouverneur. From aerials appears to have been replaced Built 1894
Gleason Road Bridge[Map] Pony truss bridge over North Branch Grasse River on Gleason Road Open to traffic Built 1909
Grantville Road Bridge[Map · Street View] Pin connected Lenticular Warren through truss bridge over Raquette River on Grantville Road Closed to all traffic Built 1886 by the Berlin Iron Bridge Co.; Rehabilitated 1931,1965; Closed 1979
Grass River Bridge[Map] Stone arch bridge over Grass River on CR 39 Open to traffic Built 1882; rehabilitated 1977
Hall Road Bridge[Map] Lost truss bridge over Indian River on Hall Road No longer exists
Helena Bridge[Map] Pin connected Pratt through truss bridge over St. Regis River on CR 37 Closed to all traffic Built 1900 by Canton Bridge Co; Rehabilitated 1965; Closed c.2000
Heuvelton Bowstring Bridge[Map] Lost Bowstring bridge over Oswegatchie River at Heuvelton Replaced by a new bridge Late 1870s (or early 1880s) based on strut design; replaced in 1917
Hewittville Road Bridge[Map] Concrete arch bridge over Raquette River on Hewittville Road Open to traffic Built 1922; rehabilitated 1977
Island Branch Road Bridge[Map] Lost truss bridge over Oswegatchie River on Island Branch Road No longer exists Built 1954; replaced 2004
Jones Road Bridge (East)[Map] Lost Pony truss bridge over West Branch St. Regis River on Jones Road Open to pedestrians and snowmobiles only Built 1902; replaced in 2021 by pony truss from Oswegatchie River in Edwards NY
Jones Road Bridge (West)[Map] Pony truss bridge over West Branch St. Regis River on Jones Road Open to pedestrians and snowmobiles only Built 1902
Kearney Road Bridge[Map] Lost truss bridge over Oswegatchie River on Kearney Road No longer exists
Keenan Road Bridge[Map] Steel arch bridge over Hunkins Marsh on Keenan Road Open to traffic Built 1902
Kendrew Bridge[Map] Lost Pratt through truss bridge over Oswegatchie River Replaced by a new bridge Built in 1878 by the Wrought Iron Bridge Company; removed sometime after 1926 when the state took it over.
Lafayette Spring Street Bridge (1874)[Map] Lost Through truss bridge over Oswagatchie River on Lafayette Spring Street Replaced by a new bridge Built 1874; Replaced 1914
Main Street-Grass River Bridge (Pre 1909)[Map] Lost Pratt through truss bridge over Grass River on Main Street Replaced by a new bridge Built in 1878-1881 (based on plaque design - my guess 1879)
Massena Center Bridge[Map] Abandoned wire suspension bridge over Grasse River on Massena-Massena Center Road CR 42A Derelict/abandoned Closed to traffic in 1976
MSTR - Grasse River Bridge[Map] Deck plate girder bridge over Grasse River on Massena Terminal Railroad Open to traffic Built 1945 by Bethlehem Steel Co.
MSTR - NY-37B Overpass[Map · Street View] Pony plate girder bridge over NY 37B on Massena Terminal Railroad Open to traffic Built 1945 by Bethlehem Steel Co.
NYOG - Raquette River Bridge[Map] Abandoned Deck plate girder bridge over Raquette River on Abandoned New York & Ogdensburg Railway Abandoned
Old State Road Bridge[Map] Open-spandrel arch bridge over Oswegatchie River on Old State Road Intact but closed to all traffic Built 1929
OPA - Black Bridge[Map] Abandoned deck plate girder bridge over Oswegatchie River on OPA formerly New York Central Derelict/abandoned
Oswegatchie River Bridge[Map] Lost Warren pony truss bridge over Oswegatchie River on New Street in Edwards Relocated in 2021 to Jones Road in Hopkinton NY Built 1914; rehabilitated 1960; replaced 2002
Oswegatchie River Bridge[Map · Street View] Concrete arch bridge over Oswegatchie River on NY 812 in Heuvelton Open to traffic Built 1917; rehabilitated 1968
Oswegatchie River Bridge[Map] Concrete arch bridge over Oswegatchie River on CR 27 Open to traffic Built 1930
Oswegatchie River Bridge[Map] Open-spandrel arch bridge over Oswegatchie River on CR 11 Open to traffic Built 1929; rehabilitated 2005
Oswegatchie River Bridge[Map] Lost Girder bridge over Oswegatchie River on Main Street Replaced by a new bridge
Oswegatchie River Bridge[Map] Pony truss bridge over Oswegatchie River on Columbian Road Open to pedestrians only Built 1903
Oswegatchie River Bridge[Map] Lost Bridge over Oswegatchie River on Washington Street Replaced by a new bridge
Parishville Bridges[Map] Lost pair of Pratt pony trusses bridge over St Regis River on Main Street Replaced by a new bridge
Raquette River Bridge[Map] Concrete arch bridge over Raquette River on NY 971U in Potsdam Open to traffic Built 1923; rehabilitated 1961
Raquette River Bridge[Map] Concrete arch bridge over Raquette River on NY 971U in Potsdam Open to traffic Built 1922; rehabilitated 1961
Raquette River Bridge[Map] Warren through truss bridge over Raquette River on NY 37C Open to traffic Built 1930 by American Bridge Co.; Rehabilitated 1985
Raquette River Bridge[Map · Street View] Abandoned Through truss bridge over Raquette River on Traffic Circle Rd Appears closed to traffic Built 1934; rehabilitated 1965
Raquette River Bridge[Map] Concrete arch bridge over Raquette River on CR 38 in Norfolk Open to traffic Built 1918; rehabilitated 1979
Raquette River Bridge (1887)[Map] Lost Lenticular through truss bridge over Raquette River No longer exists Built 1887 by Berlin Iron Bridge Co.; Replaced 1911
Raquette River Bridge (1911)[Map] Lost Closed-spandrel arch bridge over Raquette River on Main Street Replaced by a new bridge Built 1911
Rensselaer Street Bridge (1930)[Map] Polygonal Warren pony truss bridge over Oswegatchie River on Rensselaer Street in Rensselaer Falls Replaced by a new bridge Built 1930
Richville Bridge[Map] Lost Pratt through truss bridge over Oswegatchie River on Richville Bridge Road Replaced by a new bridge Built in 1879 by the Groton Bridge Company; replaced ca. 1963
Ridge-Spring Street Bridge[Map] Concrete arch bridge over Raquette River on Ridge-Spring Street in Norwood Open to traffic Built 1923; rehabilitated 1977
Roosevelt International Bridge[Map] Lost Through truss bridge over St Lawrence River on New York Central RR and roadway Replaced by a new bridge Built 1897; Roadway added in 1933; removed in 1959 for building of St Lawrence Seaway
Russell Bridge[Map] Lost Warren through truss bridge over Grasse River on County Road 24 . Replaced by a new bridge Built 1929; rehabilitated 1999; replaced 2018.
Scotts Bridge[Map] Lost Pratt pony truss bridge over Oswegatchie River on Scotts Bridge Road No longer exists
Seaway International Bridge (North)[Map] Lost arched continuous warren through truss bridge over St. Lawrence River North Channel on International Bridge Road Replaced by a new bridge Built 1962; Demolished & replaced with UCEB in 2014
South Colton Bridge[Map] Lost Pony truss bridge over Raquette River on SR 56 Replaced by a new bridge
Spile Bridge[Map] Three-span bowstring through truss bridge over Black Lake Outlet on Spile Bridge Road Closed to traffic Built 1874 by the King Bridge Co.; later relocated here; closed to traffic May 12, 2010
St Regis Parishville Historic Bridge[Map] Pony truss bridge over St Regis River on Pedstrian Path Open to pedestrians only Site of first bridge built by white men 1809
St. Regis River Bridge[Map] Through truss bridge over St. Regis River on NY 11C in Brasher Falls-Winthrop Open to traffic Built 1933; rehabilitated 1994
St. Regis River Bridge[Map] Lost Through truss bridge over St Regis River on SR 11B Replaced by a new bridge
Trout Brook Bridge[Map] Concrete arch bridge over Trout Brook on CR 34 (West Potsdam Road) Open to traffic Built 1925; rehabilitated 1981
Trout Brook Bridge[Map] Concrete arch bridge over Trout Brook on CR 35 Open to traffic Built 1921; rehabilitated 1950
Trout Brook Bridge[Map] Abandoned pony truss bridge over Trout Brook on Ekey Road Derelict/abandoned Built 1895
Wanakena Footbridge[Map] Lost Wire suspension bridge over Oswegatchie River on Path Destroyed by ice in 2014 and replaced by a new bridge Built by Rich Lumber Company for mill access
Welch Road Bridge[Map] Steel arch bridge over White Creek on Welch Road Open to traffic Built 1917
West Branch Oswegatchie Creek Bridge[Map] Lost through truss bridge over West Branch Oswegatchie Creek on NY 58 No longer exists Built ca. 1930; replaced 2001
William Street Bridge[Map] Lost Through truss bridge over Oswegatchie River on William Street Replaced by a new bridge
Yaleville Road Bridge[Map] Lenticular through truss bridge over Raquette River on Yaleville Road in Norfolk Intact but closed to all traffic in August 2020 Built 1892 by Berlin Iron Bridge Co.; Rehabilitated 1969