| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|
| Belmont Avenue Bridge | Belmont Avenue over Southern State Parkway (NY 908M) | Open to traffic | Arch | 1960 | -- | 71.9 ft. | 77.8 ft. |
| Belmont Avenue Bridge | Belmont Avenue over Southern State Parkway (NY 908M) | Open to traffic | Arch | 1960 | -- | 71.9 ft. | 77.8 ft. |
| Bridge Lane Bridge | Bridge Lane over LIRR Main Line | Open to traffic | Timber stringer | 1885 | -- | 15.7 ft. | 63.0 ft. |
| Carlls River Bridge | NY 27 over Carlls River | Open to traffic | Arch | 1932 | -- | 28.9 ft. | 28.9 ft. |
| Carlls River Bridge | Southern State Parkway (908M) over Carlls River, Pedestrian | Open to traffic | Arch | 1933 | -- | 31.8 ft. | 35.8 ft. |
| Dix Hills Road Bridge | Dix Hills Road over Northern State Parkway (NY 908G) | Open to traffic | Arch | 1949 | -- | 44.0 ft. | 48.9 ft. |
| Dix Hills Road Bridge | Dix Hills Road over Northern State Parkway (NY 908G) | Open to traffic | Arch | 1949 | -- | 44.0 ft. | 48.9 ft. |
| Great South Bay Bridge | Robert Moses Causeway (NY 908J) over Great South Bay | Open to traffic | Through truss | 1951 | -- | 460.0 ft. | 10519.5 ft. |
| Lakeview Avenue Bridge | Lakeview Avenue E over Mirror Lake | Open to traffic | Arch | 1910 | -- | 24.9 ft. | 28.9 ft. |
| Lakeview Avenue W Bridge | Lakeview Avenue W over Upper Cascade Lake | Open to traffic | Arch | 1910 | -- | 24.9 ft. | 28.9 ft. |
| Little East Neck Road Bridge | Little East Neck Road over Southern State Parkway (NY 908M) | Open to traffic | Arch | 1959 | -- | 69.9 ft. | 74.8 ft. |
| Little East Neck Road Bridge | Little East Neck Road over Southern State Parkway (NY 908M) | Open to traffic | Arch | 1941 | -- | 77.8 ft. | 84.0 ft. |
| Narrow Bay Bridge | Floyd Parkway Extension over Narrow Bay | Open to traffic | Other | 1959 | -- | 89.9 ft. | 1219.9 ft. |
| Patchogue Lake Bridge | Roe Blvd. over Patchogue Lake | Open to traffic | Arch | 1920 | -- | 24.9 ft. | 29.9 ft. |
| Post Lane Bridge | Post Lane over Quogue Canal | Open to traffic | Other | 1940 | -- | 67.9 ft. | 170.0 ft. |
| Riviera Drive East Bridge | Riviera Drive East over Santa Barbara Ca | Open to traffic | Arch | 1910 | -- | 24.9 ft. | 32.8 ft. |
| Riviera Drive West Bridge | Riviera Drive West over Santa Barbara Ca | Open to traffic | Arch | 1910 | -- | 24.9 ft. | 32.8 ft. |
| Sagg Road Bridge | Sagg Road over LIRR Montauk Branch | Open to traffic | Timber stringer | 1921 | -- | 16.7 ft. | 74.8 ft. |
| Sheep Pasture Road Bridge | Sheep Pasture Road over LIRR | Open to traffic | Timber stringer | 1906 | -- | 16.7 ft. | 83.0 ft. |
| Southern State Parkway Bridge | NY 109 over Southern State Parkway (NY 908M) | Open to traffic | Arch | 1940 | -- | 63.0 ft. | 68.9 ft. |
| Southern State Parkway Bridge | NY 110 over Southern State Parkway (NY 908M) | Open to traffic | Arch | 1939 | -- | 59.7 ft. | 65.0 ft. |
| Southern State Parkway Bridge | NY 110 over Southern State Parkway (NY 908M) | Open to traffic | Arch | 1957 | -- | 68.9 ft. | 73.8 ft. |
| State Boat Channel Bridge | Robert Moses State Parkway (Robert Moses Causeway (NY 908J)) over State Boat Channel | Open to traffic | Deck plate girder | 1951 | -- | 149.9 ft. | 811.7 ft. |
| Sunken Meadow Creek Bridge | Sunken Meadow State Parkway (NY 908K) over Sunken Meadow Creek | Open to traffic | Arch | 1955 | -- | 75.8 ft. | 85.0 ft. |
| Sylvan Road Bridge | Sylvan Road over Carlls River | Open to traffic | Arch | 1960 | -- | 31.8 ft. | 35.8 ft. |
| Wellwood Avenue Bridge | Wellwood Avenue over Southern State Parkway (NY 908M) | Open to traffic | Arch | 1960 | -- | 68.9 ft. | 74.8 ft. |
| Wellwood Avenue Bridge | Wellwood Avenue over Southern State Parkway (NY 908M) | Open to traffic | Arch | 1934 | -- | 59.7 ft. | 65.0 ft. |