| I-75 SB over Lake State Rr | Poor | 141.4 ft | 5,877 | 1961 |
| I-75 NB over Lake State Rr | Poor | 141.4 ft | 5,877 | 1961 |
| I-75 SB over M-72|huron ST | Poor | 133.9 ft | 5,877 | 1961 |
| I-75 NB over M-72|huron ST | Poor | 133.9 ft | 5,877 | 1961 |
| County RD 612 over N Br Au Sable River | Poor | 45.9 ft | 409 | 1961 |
| N Down River RD over Big Creek | Poor | 49.9 ft | 261 | 1948 |
| I-75BL|M-72|N Jame over Au Sable River | Fair | 40.0 ft | 13,375 | 1935 |
| M-72|m-93 over Au Sable River | Fair | 54.1 ft | 11,731 | 1993 |
| I-75 SB over S Grayling RD | Fair | 117.5 ft | 11,000 | 1970 |
| I-75 NB over S Grayling RD | Fair | 125.7 ft | 11,000 | 1970 |
| I-75 NB over E Br Au Sable River | Fair | 39.0 ft | 9,772 | 1961 |
| I-75 NB over Lewiston Grade Road | Fair | 98.1 ft | 9,772 | 1961 |
| I-75 SB over Lewiston Grade Road | Fair | 98.1 ft | 9,772 | 1961 |
| I-75 SB over Us-127 NB | Fair | 303.1 ft | 9,649 | 1962 |
| I-75 NB over Au Sable River | Fair | 64.0 ft | 8,126 | 1960 |
| I-75 SB over Au Sable River | Fair | 68.9 ft | 8,125 | 1960 |
| I-75 SB over E Br Au Sable River | Fair | 39.0 ft | 7,158 | 1961 |
| M-72 over Manistee River | Fair | 60.0 ft | 6,618 | 1932 |
| NB I-75 Bl over I-75 SB | Fair | 203.1 ft | 4,810 | 1961 |
| M-72 over S Br Au Sable River | Fair | 223.8 ft | 2,140 | 1958 |
| Maple ST over Au Sable River | Fair | 60.0 ft | 2,000 | 1975 |
| I-75 Bl|m-93 over I-75 SB | Fair | 171.6 ft | 1,450 | 1961 |
| I-75 Bl|m-93 over I-75 NB | Fair | 166.3 ft | 1,450 | 1961 |
| 7 Mile RD over I-75 NB | Fair | 171.3 ft | 800 | 1970 |
| N Down River RD over I-75 NB | Fair | 265.1 ft | 780 | 1961 |
| County RD 612 over Big Creek | Fair | 32.2 ft | 731 | 1993 |
| Stephan Bridge RD over Au Sable River | Fair | 61.0 ft | 560 | 1900 |
| County Road 612 over I-75 SB | Fair | 128.3 ft | 390 | 1961 |
| County Road 612 over I-75 NB | Fair | 128.3 ft | 390 | 1961 |
| N Down River RD over N Br Au Sable River | Fair | 49.9 ft | 287 | 1964 |
| Chase Bridge RD over S Br Au Sable River | Fair | 61.0 ft | 286 | 1968 |
| County RD 612 over Manistee River | Fair | 62.0 ft | 250 | 1920 |
| Fletcher RD over Us-127 SB | Fair | 154.9 ft | 200 | 1967 |
| Fletcher RD over Us-127 NB | Fair | 161.4 ft | 200 | 1967 |
| Cameron Bridge RD over Manistee River | Fair | 87.9 ft | 200 | 1993 |
| Mcmasters Bridgerd over Au Sable River | Fair | 91.9 ft | 199 | 1990 |
| 4 Mi RD over I-75 NB | Fair | 211.0 ft | 180 | 1961 |
| N Higgins Lake RD over Us-127 NB | Fair | 206.4 ft | 160 | 1967 |
| Hulbert Road over Au Sable River | Fair | 25.9 ft | 150 | 1993 |
| Steckert Bridge RD over South Branch Au Sable | Fair | 55.8 ft | 150 | 1979 |
| Ole Dam Road over Ausable River | Fair | 25.9 ft | 100 | 1977 |
| 7 Mile RD over I-75 SB | Fair | 173.6 ft | 80 | 1970 |
| Pollak Bridge Road over Au Sable | Fair | 31.8 ft | 50 | 1987 |
| Kinley Road over E Br Au Sable River | Fair | 38.1 ft | 50 | 1989 |
| Tank Site No 2 over E Br Au Sable River | Fair | 32.8 ft | 50 | 1998 |
| Smith Bridge Road over South Br. Au Sable River | Fair | 86.0 ft | 30 | 1995 |
| N Down River RD over E Br Au Sable River | Good | 80.1 ft | 5,067 | 2016 |
| County RD 612 over Au Sable River | Good | 65.0 ft | 1,131 | 2023 |
| Wakeley Bridge RD over Au Sable River | Good | 129.9 ft | 648 | 2022 |
| Wilcox Bridge RD over East Branch Of Au Sable | Good | 28.9 ft | 250 | 2002 |
| May Lake Road over Au Sable River | Good | 34.8 ft | 200 | 1995 |
| Batterson Road over Au Sable River | Good | 44.0 ft | 120 | 1979 |
| W Karen Lake RD over E Br Ausable River | Good | 32.2 ft | 50 | 2016 |
| Tank Site No 1 over E Br Au Sable River | Good | 32.8 ft | 50 | 1999 |
| Lewiston Grade RD over E Branch Au Sable River | Good | 22.0 ft | 15 | 1960 |