| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| Arctic Street Bridge | Arctic Street over Pembroke Lakes | Open to traffic | Arch | 1934 | -- | 20.0 ft. | 20.0 ft. |
| Ash Creek Bridge | CT 130 over Ash Creek | Open to traffic | Arch | 1910 | -- | 40.0 ft. | 40.0 ft. |
| Aspetuck River Bridge | Valley Road #1 over Aspetuck River | Open to traffic | Stone arch | 1920 | -- | 24.9 ft. | 24.9 ft. |
| Bailwick Road Bridge | Bailwick Road over Byram River | Open to traffic | Arch | 1970 | -- | 33.1 ft. | 33.1 ft. |
| Ball Pond Brook Bridge | Sawmill Road #1 over Ball Pond Brook | Open to traffic | Steel arch | 1930 | -- | 21.0 ft. | 21.0 ft. |
| Bayberry Lane Bridge | CT 15 over Bayberry Lane | Open to traffic | Arch | 1939 | -- | 33.1 ft. | 33.1 ft. |
| Boggs Pond Brook Bridge | CT 37 over Boggs Pond Brook | Open to traffic | Stone arch | 1911 | -- | 16.1 ft. | 35.1 ft. |
| Boston Avenue Bridge | US 1 over Stillman Pond Brook | Open to traffic | Closed-spandrel arch | 1910 | -- | 75.1 ft. | 75.1 ft. |
| Byram Road Bridge | Byram Road over Metro North Railroad | Open to traffic | Warren pony truss | 1893 | -- | 69.9 ft. | 74.2 ft. |
| Cliffdale Road Bridge | Cliffdale Road over Byram River | Open to traffic | Timber stringer | 1925 | -- | 37.1 ft. | 41.0 ft. |
| Congress Street Bridge | Congress Street over Pequonnock River | Closed to all traffic | Deck plate girder | 1909 | -- | 112.9 ft. | 424.9 ft. |
| Crosby Street Bridge | Crosby Street over Padanaram Brook | Open to traffic | Stone arch | 1899 | -- | 23.0 ft. | 48.9 ft. |
| Cross Highway Bridge | CT 15 over Cross Highway | Open to traffic | Arch | 1938 | -- | 36.1 ft. | 41.0 ft. |
| CT 53 Bridge | CT 15 over CT 53 | Open to traffic | Arch | 1937 | -- | 35.1 ft. | 35.1 ft. |
| Derby-Shelton Bridge | CT 712 (Bridge Street) over Housatonic River | Open to traffic | Closed-spandrel arch | 1918 | -- | 94.2 ft. | 465.9 ft. |
| Drinkwater Place Bridge | Drinkwater Place over Metro North Railroad | Open to traffic | Warren pony truss | 1895 | -- | 83.0 ft. | 88.9 ft. |
| East Washington Street Bridge | East Washington Street over Pequonnock River | Open to traffic | Deck plate girder | 1916 | -- | 90.9 ft. | 229.0 ft. |
| Five Mile River Bridge | US 1 over Five Mile River | Open to traffic | Arch | 1850 | -- | 32.2 ft. | 37.1 ft. |
| Five Mile River Bridge | Old Tokeneke Road over Five Mile River | Closed to all traffic | Stone arch | 1912 | -- | 23.0 ft. | 48.9 ft. |
| Frenchtown Road Bridge | Frenchtown Road over CT 15 | Open to traffic | Arch | 1942 | -- | 49.9 ft. | 106.0 ft. |
| Glenville Street Bridge | Glenville Street over Byram River | Open to traffic | Arch | 1948 | -- | 53.2 ft. | 53.2 ft. |
| Glover Avenue Bridge | Glover Avenue over Norwalk River | Open to traffic | Stone arch | 1912 | -- | 40.0 ft. | 84.0 ft. |
| Guinea Road Bridge | Guinea Road over CT 15 | Open to traffic | Arch | 1937 | -- | 80.1 ft. | 100.1 ft. |
| Hales Road Bridge | Hales Road over Metro North Railroad | Open to traffic | Warren pony truss | 1891 | -- | 55.1 ft. | 59.1 ft. |
| Hickock Road Bridge | Hickock Road over Silvermine River | Open to traffic | Steel arch | 1956 | -- | 14.1 ft. | 29.9 ft. |
| Horseneck Brook Bridge | Shore Road #1 over Horseneck Brook | Open to traffic | Stone arch | 1905 | -- | 29.9 ft. | 29.9 ft. |
| Housatonic River Bridge | CT 133 over Housatonic River | Open to traffic | Through truss | 1954 | -- | 208.0 ft. | 851.1 ft. |
| Housatonic River Bridge | CT 816 (Glen Road) over Housatonic River | Open to traffic | Parker through truss | 1936 | -- | 299.9 ft. | 308.1 ft. |
| Housatonic River Bridge | CT 8 over Housatonic River | Open to traffic | Deck truss | 1951 | -- | 253.9 ft. | 1578.2 ft. |
| Indian Hole Brook Bridge | CT 454 over Indian Hole Brook | Open to traffic | Stone arch | 1910 | -- | 24.0 ft. | 24.0 ft. |
| Interlaken Road Bridge | Interlaken Road over North Stamford Reservoir Outlet | Open to traffic | Arch | 1941 | -- | 40.0 ft. | 40.0 ft. |
| James Farm Road Bridge | James Farm Road over CT 15 | Open to traffic | Arch | 1940 | -- | 38.1 ft. | 87.9 ft. |
| Jelliff Mill Road Bridge | Jelliff Mill Road over Noroton River | Open to traffic | Steel arch | 1950 | -- | 20.0 ft. | 42.0 ft. |
| June Road Bridge | June Road over Mianus River | Open to traffic | Arch | 1935 | -- | 34.1 ft. | 34.1 ft. |
| Main Street Bridge | Main Street over Rippowam River | Closed to all traffic | Lenticular pony truss | 1888 | -- | 61.0 ft. | 123.0 ft. |
| Newtown Turnpike Bridge | Newtown Turnpike over CT 15 | Open to traffic | Arch | 1939 | -- | 44.9 ft. | 115.2 ft. |
| North Street Bridge | North Street over Rippowam River | Open to traffic | Stone arch | 1900 | -- | 25.9 ft. | 83.0 ft. |
| Norwalk River Bridge | CT 123 over Norwalk River | Open to traffic | Stone arch | 1860 | -- | 34.1 ft. | 113.9 ft. |
| Norwalk River Bridge | CT 136 over Norwalk River | Open to traffic | Other | 1972 | -- | 133.9 ft. | 498.1 ft. |
| Norwalk River Bridge | CT 15 over Norwalk River | Open to traffic | Arch | 1938 | -- | 35.1 ft. | 99.1 ft. |
| Old Redding Road Bridge | Old Redding Road over Aspetuck River | Open to traffic | Arch | 1941 | -- | 20.0 ft. | 20.0 ft. |
| Palmer Hill Road Bridge | Palmer Hill Road over Mianus River | Open to traffic | Stone arch | 1907 | -- | 40.0 ft. | 40.0 ft. |
| Park Avenue Bridge | Park Avenue over CT 15 | Open to traffic | Arch | 1940 | -- | 89.9 ft. | 89.9 ft. |
| Pequonnock River Bridge | CT 130 over Pequonnock River | Open to traffic | Other | 1975 | -- | 129.9 ft. | 525.0 ft. |
| Pequonnock River Bridge | Grand Street over Pequonnock River | Closed to all traffic | Other | 1916 | -- | 96.1 ft. | 372.1 ft. |
| Perry Avenue Bridge | Perry Avenue over Silvermine River | Open to traffic | Stone arch | 1899 | -- | 40.0 ft. | 40.0 ft. |
| Pleasure Beach Bridge | Pleasure Beach Road over Lewis Gut | Closed to all traffic | Warren through truss | 1924 | -- | 102.0 ft. | 1366.2 ft. |
| Porchuck Road Bridge | Porchuck Road over East Branch Byram River | Open to traffic | Arch | 1925 | -- | 20.0 ft. | 20.0 ft. |
| Rings End Road Bridge | Rings End Road over Gorhams Pond | Open to traffic | Closed-spandrel arch | 1929 | -- | 40.0 ft. | 120.1 ft. |
| Rippowam River Bridge | South State Street over Rippowam River | Open to traffic | Stone arch | 1847 | -- | 29.9 ft. | 118.1 ft. |
| Rippowam River Bridge | CT 15 over Rippowam River | Open to traffic | Arch | 1936 | -- | 55.1 ft. | 63.0 ft. |
| Rose Hill Avenue Bridge | Rose Hill Avenue over Still River | Open to traffic | Stone arch | 1908 | -- | 27.9 ft. | 27.9 ft. |
| Saugatuck River Bridge | CT 136 over Saugatuck River | Open to traffic | Pratt through truss | 1884 | -- | 69.9 ft. | 287.1 ft. |
| Saugatuck River Bridge | CT 15 over Saugatuck River | Open to traffic | Steel arch | 1938 | -- | 129.9 ft. | 253.0 ft. |
| Still River Bridge | CT 25 over Still River | Open to traffic | Stone arch | 1920 | -- | 44.9 ft. | 44.9 ft. |
| Taconic Road Bridge | CT 15 over Taconic Road | Open to traffic | Arch | 1936 | -- | 56.1 ft. | 56.1 ft. |
| Valley Forge Road Bridge | Valley Forge Road over Saugatuck River | Open to traffic | Arch | 1938 | -- | 47.9 ft. | 47.9 ft. |
| Wall Street Bridge | Wall Street over Norwalk River | Open to traffic | Stone arch | 1922 | -- | 60.0 ft. | 60.0 ft. |
| West Branch Saugatuck River Bridge | CT 57 over West Branch Saugatuck Ri | Open to traffic | Arch | 1933 | -- | 24.0 ft. | 29.9 ft. |
| West Cedar Street Bridge | West Cedar Street over Five Mile River | Open to traffic | Stone arch | 1910 | -- | 27.9 ft. | 27.9 ft. |
| West Street Bridge | West Street over Still River | Open to traffic | Stone arch | 1925 | -- | 12.1 ft. | 30.8 ft. |
| Yellow Mill Bridge | CT 130 (Stratford Avenue) over Yellow Mill Pond | Open to traffic | Deck plate girder | 1929 | -- | 122.1 ft. | 339.9 ft. |