| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|
| Bend Road Bridge | Bend Road over Meramec River | Open to one-lane traffic | Pennsylvania through truss | 1916 | -- | 200.1 ft. | 421.8 ft. |
| Bieker Road Bridge | Bieker Road over DuBois Creek | Closed to traffic | Stone arch | -- | -- | -- | -- |
| Boeuf Creek MO 100 Bridge | MO 100 over Boeuf Creek | Replaced by a modern bridge | Pony truss | 1934 | 2003 | 100.4 ft. | 313.9 ft. |
| Boeuf Creek Road Bridge | Boeuf Creek Road over Boeuf Creek | Open to one-lane traffic with a 30 ton weight limit | Parker through truss | ca. 1930 | -- | 147.9 ft. | 189.9 ft. |
| Boles Road Bridge | Boles Road over Dunn Spring Creek | Replaced by culvert | Pony truss | ca. 1910 | 1999 | 20.0 ft. | 85.9 ft. |
| Bourbeuse Bridge | Bridge over Bourbeuse River | No longer exists | Parker through truss | -- | -- | -- | -- |
| Bucklick School Road Bridge | Bucklick School over Bucklick Creek | Open to one-lane traffic | Pratt pony truss | ca. 1920 | -- | 43.9 ft. | 45.9 ft. |
| Buffalo Ridge Road Bridge | Buffalo Ridge Road over Middle Fork of Cedar Fork | Replaced by modern bridge | Miller & Borcherding pony truss | ca. 1910 | 1999 | 50.8 ft. | 51.8 ft. |
| Busch Creek Old MO 100 Bridge | Old MO 100 over Busch Creek | Open to traffic | Pony/through plate girder | 1955 | -- | 79.0 ft. | 188.0 ft. |
| Calvey Creek Road Bridge | Calvey Creek Road over Calvey Creek | Replaced by modern bridge | Through truss | ca. 1915 | 1998 | 100.0 ft. | 102.0 ft. |
| County Line Road Bridge | County Line Road over Pin Oak Branch | Replaced by modern bridge | Pony truss | ca. 1920 | 1999 | -- | 71.8 ft. |
| Enochs Knob Road Bridge | Enochs Knob Road over Boeuf Creek | Open to one-lane traffic | Parker through truss | 1908 | -- | 180.1 ft. | 185.0 ft. |
| Etlah Bridge | Route B over Big Berger Creek | Demolished 1988 after the construction of a new concrete bridge | Pratt through truss | 1894 | 1988 | 128.0 ft. | 164.0 ft. |
| Fenton Creek Bridge | Predecessor to Route V over Fenton Creek | Closed to all traffic | Pratt deck truss | -- | -- | -- | -- |
| Gray Summit Tunnel | Union Pacific Railroad under Gray Summit and MO 100 | Open to two-track railroad traffic | Tunnel | -- | -- | -- | -- |
| Hartmann's Ford Bridge | North Bend Road over Bourbeuse River | Replaced by a new bridge | Pennsylvania through truss | 1916 | 1997 | 249.9 ft. | 270.9 ft. |
| Junction Spur Bridge | Junction Spur over Branch of Pin Oak Creek | Open to traffic | Stone arch | -- | -- | -- | -- |
| Kaiser Hill Road Bridge | Kaiser Hill Road over Pin Oak Creek | Open to traffic | Stone arch | -- | -- | -- | -- |
| Krakow Bridge | Predecessor to Route YY over Long Branch | Abandoned, but still in good shape | Stone arch | -- | -- | -- | -- |
| Labadie Bottom Road Bridge | Labadie Bottom Road over Labadie Creek | Open to traffic | Pratt through truss | 1901 | -- | 96.1 ft. | 136.1 ft. |
| Labadie Railroad Tunnel | Union Pacific Railroad under Route T | Open to two tracks of railroad traffic | Tunnel | 1929 | -- | -- | -- |
| Labadie Tunnel | Route T under Rock Island Railroad | Removed | Tunnel | -- | -- | -- | -- |
| Labadie Viaduct | Formerly the Rock Island Railroad over Labadie Bottom Road | Still in use | Warren through truss | -- | -- | -- | -- |
| Little Boeuf Creek MO 100 Bridge | MO 100 over Little Boeuf Creek | Open to two-lane traffic | Steel stringer | 1934 | -- | 52.5 ft. | 138.1 ft. |
| Little Bourbeuse Road Bridge | Little Bourbeuse Road over Little Bourbeuse River | No longer exists | Pony truss | ca. 1920 | 2003 | 80.0 ft. | 82.0 ft. |
| Little Meramec River Bridge | Mill Hill Road over Little Meramec River | Replaced by modern bridge | Through truss | 1911 | 1998 | 109.9 ft. | 111.8 ft. |
| Meramec River MO 30 Bridge | MO 30 over Meramec River | Replaced by bridge on new alignment | Open-spandrel arch | 1929 | 2002 | 105.0 ft. | 824.9 ft. |
| Methodic Church Road Bridge | Methodic Church Road over Branch of St. Johns Creek | Replaced by modern bridge | Pony truss | ca. 1910 | 1995 | 69.8 ft. | 71.8 ft. |
| Mill Hill Road Bridge | Mill Hill Road over Meramec River | Closed to traffic | Pratt through truss | -- | -- | -- | -- |
| Newport Road Bridge | Newport Road over Branch of Little Boeuf Creek | Open to one-lane traffic | Closed-spandrel arch | -- | -- | -- | -- |
| Noser Mill Bridge | MO 185 over Bourbeuse River | Removed | Parker through truss | 1902 | -- | -- | -- |
| Old State Road Bridge | Old State Road over St. Johns Creek | Replaced by new bridge | Pony truss | ca. 1960 | 1999 | 60.0 ft. | 102.0 ft. |
| Pacific Covered Bridge | Bridge over Meramec River | Replaced by a new bridge just downstream when Route F was built | Through truss | -- | -- | -- | -- |
| Red Bridge | Bridge over Bourbeuse River | Destroyed by severe weather | Howe through truss | 1852 | -- | -- | -- |
| Shawnee Ford Bridge | Shawnee Ford Road over Bourbeuse River | Open to one-lane traffic with a 19 ton weight limit | Camelback through truss | ca. 1920 | -- | 189.9 ft. | 276.8 ft. |
| St. Johns Creek Route YY Bridge | Route YY over St. Johns Creek | Open to two-lane traffic | Warren pony truss | 1957 | -- | 81.3 ft. | 187.0 ft. |
| St. Johns Road Bridge | St. Johns Road over Tributary of Brown Branch | Abandoned, but still in good shape | Stone arch | -- | -- | -- | -- |
| Washington Bridge | MO 47 over Missouri River | Open to two-lane traffic | Cantilevered through truss | 1934 | -- | 474.6 ft. | 2561.3 ft. |
| Washington Street Bridge | Washington Street over Flat Creek | Open to traffic | Stone arch | -- | -- | 29.9 ft. | 63.0 ft. |