| Beitner Road over Boardman River | Poor | 44.0 ft | 19,628 | 1980 |
| North Union Street over Boardman River | Poor | 99.7 ft | 4,803 | 1955 |
| S Airport Road over Boardman River | Fair | 41.0 ft | 21,860 | 1977 |
| S Airport Road over Boardman River | Fair | 38.7 ft | 18,938 | 1961 |
| M-37 over Mdot Rr Corridor | Fair | 222.8 ft | 16,500 | 1965 |
| Us-31 over Tonawanda Creek | Fair | 36.1 ft | 15,029 | 1927 |
| Us-31 over Acme Creek | Fair | 24.0 ft | 12,363 | 1928 |
| Us-31 over Cedar Hedge Creek | Fair | 36.1 ft | 10,386 | 1927 |
| Union Street-south over Boardman River | Fair | 75.1 ft | 6,545 | 1931 |
| Supply Road over Boardman River | Fair | 27.9 ft | 5,163 | 1954 |
| South Cass Street over Boardman River | Fair | 65.0 ft | 5,020 | 1930 |
| Park Street over Boardman River | Fair | 60.0 ft | 3,824 | 1956 |
| Business Park Drv over Mitchell Creek | Fair | 33.8 ft | 988 | 2001 |
| Scharmen RD over Boardman River | Fair | 37.7 ft | 392 | 1958 |
| Brown Bridge Road over Boardman River | Fair | 63.0 ft | 165 | 1977 |
| Broomhead Road over S Br Boardman River | Fair | 36.1 ft | 111 | 1954 |
| Us-31|m-37|m-72|gr over Boardman River | Good | 78.1 ft | 26,650 | 1951 |
| Three Mile Road over Mitchell Creek | Good | 22.6 ft | 24,586 | 2006 |
| Eighth Street over Boardman River | Good | 118.4 ft | 15,609 | 1974 |
| Hammond Road over Glc Rr | Good | 29.9 ft | 15,578 | 2009 |
| Front Street over Boardman River | Good | 65.0 ft | 13,681 | 2022 |
| Co RD 611 over Boardman River | Good | 69.9 ft | 10,294 | 1947 |
| Three Mile Road over Mitchell Creek | Good | 34.1 ft | 9,668 | 2005 |
| Cass Road over Boardman River | Good | 261.2 ft | 7,384 | 2016 |
| Keystone Road N over Glc Rr | Good | 68.9 ft | 5,348 | 2009 |
| North Cass Street over Boardman River | Good | 60.0 ft | 3,533 | 1960 |
| River Road over Boardman River | Good | 89.9 ft | 2,586 | 1962 |
| River Road over Boardman River | Good | 77.8 ft | 2,586 | 1962 |
| Diamond Park Road over Little Betsie River | Good | 42.0 ft | 941 | 1970 |
| E Duck Lake RD over Mason Creek | Good | 28.5 ft | 928 | 2019 |
| Betsie River Road over Betsie River | Good | 24.6 ft | 532 | 1973 |
| Brown Bridge Road over Boardman River | Good | 37.7 ft | 117 | 1949 |
| Broomhead Road over N Br Boardman River | Good | 53.5 ft | 99 | 2022 |