| M-65 over Johnson Creek | Poor | 119.1 ft | 4,353 | 1950 |
| M-55 over E Br Au Gres River | Poor | 176.8 ft | 3,110 | 1954 |
| Shellenbarger Road over Smith Creek | Poor | 23.0 ft | 220 | 1950 |
| Us-23 over Tawas River | Fair | 68.9 ft | 15,836 | 1984 |
| F 41 over Van Ettan Creek | Fair | 116.1 ft | 12,300 | 1979 |
| Us-23 over Au Sable River | Fair | 232.0 ft | 8,367 | 1972 |
| M-55|hemlock ST over Tawas River | Fair | 59.1 ft | 8,047 | 1950 |
| M-65 over Hale Creek | Fair | 43.6 ft | 6,737 | 1952 |
| Us-23 over Private Road | Fair | 40.0 ft | 5,497 | 1931 |
| River Road over Au Sable River | Fair | 300.9 ft | 4,920 | 1963 |
| Monument RD over Tawas River | Fair | 89.9 ft | 4,030 | 1981 |
| M-65 over Au Gres River | Fair | 133.9 ft | 3,354 | 1951 |
| Sixth Avenue over Dead Creek | Fair | 40.0 ft | 2,860 | 1981 |
| M-55 over Hope Creek | Fair | 126.0 ft | 2,529 | 1928 |
| M-65 over Au Sable River | Fair | 753.9 ft | 2,497 | 2003 |
| Whittemore Street over Tawas River | Fair | 65.0 ft | 1,480 | 1981 |
| Matthews Street over Tawas River | Fair | 51.8 ft | 1,380 | 1972 |
| Rea RD over Au Sable River | Fair | 238.5 ft | 1,200 | 1957 |
| Sherman RD over Silver Creek | Fair | 38.1 ft | 1,190 | 1994 |
| S Branch RD over S Br Of Au Sable River | Fair | 53.8 ft | 1,100 | 1979 |
| Whittemore RD over Au Gres River | Fair | 105.0 ft | 1,090 | 1975 |
| Kings Corner over Pine River | Fair | 120.1 ft | 1,000 | 1981 |
| First Street over Tawas River | Fair | 51.8 ft | 950 | 1972 |
| Turtle RD over Au Gres River | Fair | 105.0 ft | 780 | 2003 |
| Meadow Road over Dead Creek | Fair | 32.2 ft | 740 | 1993 |
| Old State RD over E Br Of Au Gres River | Fair | 40.0 ft | 720 | 1977 |
| Alabaster RD over E Br Of Au Gres Riv | Fair | 71.9 ft | 640 | 1980 |
| National City RD over Augres River | Fair | 77.8 ft | 530 | 1978 |
| Curtis Road over Hale Creek | Fair | 29.2 ft | 480 | 1976 |
| Sand Lake RD over E Branch Of Augres River | Fair | 42.0 ft | 420 | 1982 |
| Carpenter Road over East Branch Augres River | Fair | 31.8 ft | 300 | 1979 |
| Towerline Road over Johnson Creek | Fair | 51.8 ft | 160 | 1988 |
| Hottis RD over Johnson Creek | Fair | 39.0 ft | 120 | 1978 |
| Curtis Road over Smith Creek | Fair | 22.0 ft | 120 | 1931 |
| Brooks Road over Silver Creek | Fair | 25.3 ft | 70 | 1935 |
| M-55 over Au Gres River | Good | 34.1 ft | 3,200 | 1929 |
| M-55 over Au Gres River | Good | 34.1 ft | 3,200 | 1929 |
| Mill Street over Ausable River | Good | 154.2 ft | 1,054 | 1971 |
| Esmond RD over Smith Creek | Good | 23.3 ft | 858 | 2017 |
| Whittemore RD over E Br Of Au Gres River | Good | 75.1 ft | 757 | 2017 |
| National City RD over County Drain | Good | 22.0 ft | 390 | 2002 |
| Kobs Road over Dead Creek | Good | 45.9 ft | 300 | 2001 |
| Alabaster RD over Whitney Creek | Good | 98.1 ft | 208 | 2024 |
| Swan RD (davison) over Silver Creek | Good | 39.4 ft | 180 | 2001 |
| Wickert RD Fh14 over S Br Of Au Sable River | Good | 29.9 ft | 150 | 1998 |
| Towerline Road over Hale Creek | Good | 22.3 ft | 130 | 1952 |
| Turtle Road over East Branch Augres River | Good | 71.9 ft | 50 | 2008 |