| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| Amtrak Bridge | Amtrak Sprgfld over CT 71 | Open to traffic | Stone arch | ca. 1870 | -- | -- | 20.0 ft. |
| Andrasko Road Bridge | Andrasko Road over Beacon Hill Brook | Open to traffic | Arch | 1950 | -- | 40.0 ft. | 40.0 ft. |
| Beacon Falls Canal Bridge | CT 852 over Beacon Falls Canal | Open to traffic | Arch | 1920 | -- | 33.1 ft. | 33.1 ft. |
| Bladens River Bridge | CT 67 over Bladens River | Open to traffic | Arch | 1936 | -- | 32.2 ft. | 32.2 ft. |
| Bradley Avenue Bridge | Bradley Avenue over Harbor Brook | Open to traffic | Arch | 1925 | -- | 29.9 ft. | 29.9 ft. |
| Cedar Street Bridge | Cedar Street over Harbor Brook | Open to traffic | Arch | 1910 | -- | 29.9 ft. | 29.9 ft. |
| Center Street Bridge | Center Street over Harbor Brook | Open to traffic | Stone arch | 1871 | -- | 25.9 ft. | 25.9 ft. |
| Chapel Street Bridge | Chapel Street over Mill River | Open to traffic | Other | 1992 | -- | 109.9 ft. | 230.0 ft. |
| Clifton Street Bridge | Clifton Street over Amtrak Railroad | Open to traffic | Stone arch | ca. 1885 | -- | 29.9 ft. | 29.9 ft. |
| Cooper Street Bridge | Cooper Street over Harbor Brook | Open to traffic | Stone arch | 1892 | -- | 25.9 ft. | 25.9 ft. |
| Cotton Hollow Road Bridge | Cotton Hollow Road over Beacon Hill Brook | Open to traffic | Steel arch | 1933 | -- | 13.1 ft. | 30.8 ft. |
| CT 15 Bridge | CT 34 over CT 15 | Open to traffic | Arch | 1941 | -- | 45.9 ft. | 101.1 ft. |
| CT 243 Bridge | CT 15 over CT 243 | Open to traffic | Arch | 1948 | -- | 60.0 ft. | 60.0 ft. |
| Depot Street Bridge | Depot Street over Naugatuck River | Open to traffic | Parker through truss | 1935 | -- | 207.0 ft. | 212.0 ft. |
| East Liberty Street Bridge | East Liberty Street over Mad River | Open to traffic | Arch | 1907 | -- | 49.9 ft. | 55.1 ft. |
| East Rock Road Bridge | East Rock Road over Mill River | Open to traffic | Steel arch | 1900 | -- | 84.0 ft. | 84.0 ft. |
| Edgewood Avenue Bridge | Edgewood Avenue over West River | Open to traffic | Closed-spandrel arch | 1910 | -- | 54.1 ft. | 130.9 ft. |
| Eight Mile Brook Bridge | CT 34 over Eight Mile Brook | Open to traffic | Arch | 1924 | -- | 27.9 ft. | 27.9 ft. |
| Elm Street Bridge | Elm Street over Long Meadow Brook | Open to traffic | Steel arch | 1955 | -- | 20.0 ft. | 42.0 ft. |
| Farm River Bridge | CT 100 (Main Street) over Farm River | Open to traffic | Arch | 1900 | -- | 29.9 ft. | 29.9 ft. |
| Ferry Street Bridge | Ferry Street over Quinnipiac River | Open to traffic | Other | 1940 | -- | -- | 431.1 ft. |
| Ferry Street Bridge | Ferry Street over Amtrak Railroad | Open to traffic | Double-intersection Warren through truss | 1912 | -- | 113.9 ft. | 118.1 ft. |
| Freight Street Bridge | Freight Street over Naugatuck River | Open to traffic | Closed-spandrel arch | 1926 | -- | 80.1 ft. | 178.2 ft. |
| Grand Avenue Bridge | Grand Avenue over Quinnipiac River | Open to traffic | Other | 1900 | -- | 102.0 ft. | 425.9 ft. |
| Guntown Road Bridge | Guntown Road over Longmeadow Brook | Open to traffic | Steel arch | 1960 | -- | 24.0 ft. | 24.0 ft. |
| Hammonasset River Bridge | CT 80 over Hammonasset River | Open to traffic | Open-spandrel arch | 1934 | -- | 100.1 ft. | 203.1 ft. |
| Hancock Brook Bridge | Sheffield Street over Hancock Brook | Closed to all traffic | Lenticular pony truss | 1890 | -- | 53.2 ft. | 56.1 ft. |
| Harbor Brook Bridge | CT 71 (Cook Avenue) over Harbor Brook | Open to traffic | Stone arch | 1901 | -- | 24.0 ft. | 24.0 ft. |
| Harbor Brook Bridge | US 5 over Harbor Brook | Open to traffic | Stone arch | 1892 | -- | 27.9 ft. | 42.0 ft. |
| Hogs Back Road Bridge | Hogs Back Road over Little River | Open to traffic | Steel arch | 1954 | -- | 22.0 ft. | 22.0 ft. |
| Hop Brook Bridge | CT 188 over Hop Brook | Open to traffic | Arch | 1904 | -- | 40.0 ft. | 43.0 ft. |
| Huntingdon Avenue Bridge | Huntingdon Avenue over Steele Brook | Open to traffic | Closed-spandrel arch | 1935 | -- | 26.9 ft. | 61.0 ft. |
| Jefferson Bridge | River Street over Wepawaug River | Open to traffic | Arch | 1934 | -- | 22.0 ft. | 64.0 ft. |
| Johnson Road Bridge | Johnson Road over CT 15 | Open to traffic | Arch | 1949 | -- | 44.9 ft. | 98.1 ft. |
| Metro North Railroad Bridge | US 1 over Metro North Railroad | Open to traffic | Through truss | 1900 | -- | 163.1 ft. | 170.9 ft. |
| Mill River Bridge | Orange Street over Mill River | Open to traffic | Arch | 1950 | -- | 43.0 ft. | 118.1 ft. |
| Naugatuck River Bridge | CT 846 over Naugatuck River | Open to traffic | Closed-spandrel arch | 1922 | -- | 64.0 ft. | 193.9 ft. |
| Perkins Street Bridge | Perkins Street over Harbor Brook | Open to traffic | Stone arch | 1900 | -- | 29.9 ft. | 29.9 ft. |
| Porter Avenue Bridge | Porter Avenue over Hop Brook | Open to traffic | Arch | 1940 | -- | 55.1 ft. | 55.1 ft. |
| Quinnipiac River Bridge | US 1 over Quinnipiac River | No longer exists | Other | 2002 | -- | 270.0 ft. | 936.1 ft. |
| Russell Street Bridge | Russell Street over Amtrak Railroad | Open to traffic | Stone arch | 1935 | -- | 29.9 ft. | 29.9 ft. |
| South Street Bridge | South Street over I-84 | Open to traffic | Steel arch | 1964 | -- | 192.9 ft. | 380.9 ft. |
| Vineyard Point Road Bridge | Vineyard Point Road over Abandoned Trolley Line | Open to traffic | Arch | 1900 | -- | 36.1 ft. | 36.1 ft. |
| Washington Avenue Bridge | Washington Avenue over Mad River | Open to traffic | Lenticular pony truss | 1878 | -- | 64.0 ft. | 69.9 ft. |
| Washington Bridge | US 1 over Housatonic River | Open to traffic | Deck plate girder | 1921 | -- | 183.1 ft. | 877.0 ft. |
| Wepawaug River Bridge | CT 162 (New Haven Avenue) over Wepawaug River | Open to traffic | Stone arch | 1889 | -- | 24.0 ft. | 24.0 ft. |
| Wepawaug River Bridge | CT 34 (Derby Avenue) over Wepawaug River | Open to traffic | Stone arch | 1855 | -- | 24.0 ft. | 24.0 ft. |
| West Rock Ridge Tunnel | West Rock Ridge under CT 15 | Open to traffic | Tunnel | 1949 | -- | -- | 87.9 ft. |
| Whitney Avenue Bridge | Whitney Avenue over Canal Line Railroad (Abandoned) | Open to traffic | Stone arch | 1885 | -- | 22.0 ft. | 22.0 ft. |
| Whittemore Memorial Bridge | Maple Street over Naugatuck River | Open to traffic | Arch | 1912 | -- | 65.9 ft. | 180.1 ft. |
| Wintergreen Avenue Bridge | Wintergreen Avenue over Town Farm Brook | Open to traffic | Stone arch | 1890 | -- | 24.0 ft. | 24.0 ft. |