| Forward Road over Clam River | Poor | 71.9 ft | 1,316 | 1958 |
| Stoney Corner Road over Clam River | Poor | 45.9 ft | 600 | 1960 |
| 13 Mile Road over Butterfield Creek | Poor | 62.0 ft | 451 | 1988 |
| Lotan Road over Mosquito Creek | Poor | 24.0 ft | 280 | 1965 |
| M-55|w Watergate R over Clam River | Fair | 109.6 ft | 5,113 | 1973 |
| M-55|e Houghton La over W Br Muskegon River | Fair | 60.0 ft | 4,338 | 1931 |
| M-55|e Houghton La over Muskegon River | Fair | 89.9 ft | 4,338 | 1935 |
| M-66|w Stoney Corn over N Br Clam River | Fair | 26.9 ft | 4,081 | 1933 |
| M-66 over Clam River | Fair | 44.0 ft | 2,696 | 1929 |
| M-66|s Burkett RD over Middle Br Clam River | Fair | 26.9 ft | 2,466 | 1929 |
| La Chance Road over Clam River | Fair | 78.7 ft | 950 | 1997 |
| Falmouth Road over Marks Creek | Fair | 30.8 ft | 915 | 1945 |
| Stoney Corner Road over North Branch Clam River | Fair | 24.0 ft | 600 | 1974 |
| 8 Mile Road over Clam River | Fair | 69.9 ft | 531 | 1962 |
| Kelly Road (pri) over N Br Butterfield Creek | Fair | 24.0 ft | 330 | 1960 |
| Nelson Road over Haymarsh Creek | Fair | 24.0 ft | 330 | 1945 |
| Vandermeulen Road over Clam River | Fair | 99.7 ft | 300 | 1956 |
| Meyering Road over North Branch Clam River | Fair | 40.0 ft | 200 | 1984 |
| Turnerville Road over N Branch Clam River | Fair | 64.0 ft | 191 | 1987 |
| 7 Mile Road over Clam River | Good | 80.1 ft | 910 | 2006 |
| Vandermeulen Road over Mosquito Creek | Good | 47.9 ft | 480 | 1993 |
| Lucas Road over Manistee River | Good | 121.4 ft | 380 | 1979 |
| Merritt RD over West Br Muskegon River | Good | 109.9 ft | 356 | 1990 |
| Cadillac Road over Muskegon River | Good | 136.8 ft | 331 | 1981 |
| Dorr RD over Haymarsh Creek | Good | 34.8 ft | 330 | 1984 |
| Blue Road over Mosquito Creek | Good | 25.9 ft | 300 | 1993 |
| Stevens Road over W Branch Muskegon River | Good | 63.0 ft | 204 | 1985 |
| Star City RD over W Br Of Muskegon River | Good | 75.1 ft | 200 | 2016 |
| Lucas Road over Hopkins Creek | Good | 49.9 ft | 200 | 2016 |
| Brinks Road over North Branch Clam River | Good | 69.9 ft | 200 | 2013 |
| Vandermeulen Road over Middle Branch Clam River | Good | 37.7 ft | 181 | 1984 |
| Call Road over Clam River | Good | 79.7 ft | 180 | 1986 |
| Call RD over Marks Creek | Good | 25.9 ft | 180 | 2000 |
| Mcgee Road over Mosquito Creek | Good | 25.9 ft | 112 | 2000 |
| Dickerson Road over Hopkins Creek | Good | 27.9 ft | 110 | 2000 |
| Dolph RD over Muskegon River | Good | 89.9 ft | 78 | 2023 |
| Vandermeulen Road over North Branch Clam River | Good | 27.9 ft | 78 | 2002 |
| Burkett Road over Mosquito Creek | Good | 22.0 ft | 56 | 2003 |
| Mcvety RD over Butterfield Creek | Good | 36.1 ft | 50 | 2010 |