| I-75 BS|3 Mile Rd over I-75 NB | 1962 | 15,700 | Fair |
| I-75 Bs (ashmun) over Power Canal | 1934 | 10,180 | Fair |
| Easterday Ave. over Ashmun Creek | 1994 | 8,347 | Good |
| Easterday Ave over I-75 NB | 1962 | 7,774 | Fair |
| West Portage Ave. over Power Canal | 1970 | 7,637 | Fair |
| Spruce St. over Power Canal | 1983 | 5,995 | Fair |
| Fort Street over Power Canal | 2004 | 5,883 | Good |
| I-75 Intl Bridge over St Mary Riv/portage Av W | 1962 | 5,242 | Fair |
| Bingham Ave. over Power Canal | 1976 | 5,200 | Fair |
| Riverside Drive over Mission Creek | 2013 | 5,071 | Good |
| I-75 over S Br Big Munuscong River | 1962 | 4,092 | Good |
| M-129|dixie Hwy over Br Charlotte River | 1999 | 4,061 | Fair |
| M-129|dixie Hwy over Charlotte River | 1929 | 4,061 | Fair |
| 6 Mi Road over Walska River | 2022 | 3,945 | Good |
| I-75 Bs (portage) over Power Canal | 1970 | 3,894 | Fair |
| Johnston St. over Power Canal | 1979 | 3,720 | Fair |
| M-129|pickford Rd over S Br Charlotte River | 2010 | 3,500 | Good |
| M-129 over Br Charlotte River | 1999 | 3,344 | Fair |
| M-129|pickford Rd over Fletcher Creek | 1929 | 3,344 | Poor |
| M-129|pickford Rd over Little Munuscong River | 1968 | 3,344 | Fair |
| M-28 over E Br Waiska River | 1941 | 2,956 | Fair |
| M-28 over W Br Waiska River | 1975 | 2,956 | Fair |
| M-28|9 Mile Rd over I-75 NB | 1963 | 2,956 | Fair |
| M-48|m-129|meridia over Big Munuscong River | 1949 | 2,861 | Fair |
| M-221|lakeshore Dr over Waiska River | 1977 | 2,664 | Fair |
| M-28 over Hendrie River | 1960 | 2,127 | Poor |
| M-28 over Mcleod Ditch | 1936 | 2,127 | Fair |
| I-75 NB over M-80|canadian National R | 1962 | 1,994 | Fair |
| I-75 SB over M-80|canadian National R | 1962 | 1,994 | Fair |
| M-28 over E Br Tahquemenon River | 1926 | 1,753 | Fair |
| S Gaines Hwy over I-75 | 1962 | 1,729 | Fair |
| M-123 over Kneebone Creek | 2003 | 1,388 | Good |
| M-123 over Black Creek | 2018 | 1,200 | Good |
| M-48 over I-75 NB | 1963 | 1,175 | Fair |
| 6 Mile Rd over I-75 NB | 1963 | 1,090 | Fair |
| 6 Mile Road over Waiska River | 2008 | 1,000 | Good |
| Mackinac Trail over I-75 NB | 1963 | 1,000 | Fair |
| Gogomain Road over E Br Munuscong R | 1980 | 985 | Fair |
| Gogomain Road over Munuscong River | 1991 | 985 | Fair |
| M-134 over Prentiss Creek | 1939 | 975 | Fair |
| M-123 over Tahquamenon River | 1952 | 903 | Fair |
| M-134 over Trout Creek | 1939 | 828 | Fair |
| M-134 over Albany Creek | 1947 | 759 | Fair |
| M-48 over E Br Munuscong River | 1929 | 755 | Fair |
| M-48 over E Br Munuscong River | 1930 | 755 | Fair |
| M-123 over E Br Tahquemenon River | 1964 | 719 | Fair |
| Mackinac Trail over Munuscong River | 1933 | 666 | Fair |
| M-48 over Big Munuscong River | 1955 | 605 | Fair |
| M-48 over I-75 NB | 1962 | 605 | Fair |
| Bound Road over Waiska River | 1985 | 500 | Fair |
| Bound Road over Waiska River | 1985 | 500 | Good |
| Irr Bia Rte 3 over Mission Creek | 1996 | 500 | Fair |
| Mackinac Trail over Charlotte River | 2024 | 452 | Good |
| S Sullivan Crk Rd over Biscuit Creek | 2010 | 400 | Good |
| Whitefish Road over Betsy River | 1985 | 358 | Fair |
| S White Road over Beaver Meadow Creek | 1998 | 300 | Fair |
| Trout Lake Rd over N Br Pine River | 1979 | 290 | Fair |
| Trout Lake Road over W Br of Pine River | 1980 | 290 | Fair |
| 10 Mile Rd over I-75 NB | 1963 | 287 | Fair |
| Lake Shore Dr FH42 over Pendills Creek | 1992 | 260 | Good |
| Lakeshore Dr FH42 over Halfaday Creek | 1984 | 260 | Fair |
| Gogomain Road over Gogomain River | 1980 | 220 | Fair |
| Mackinac Trail over Chub Creek | 1933 | 216 | Poor |
| Old Mackinac Trail over Pine River | 1931 | 216 | Poor |
| Sullivan Road over Pine River | 2010 | 179 | Good |
| Riverside Drive over Charlotte River | 1959 | 165 | Fair |
| Tilson Road over Waiska River | 1979 | 125 | Fair |
| Riverside Drive over Little Munuscong R | 1977 | 111 | Poor |
| Riverside Drive over Munuscong River | 1972 | 111 | Fair |
| Riverside Drive over Big Munuscong R | 1976 | 110 | Fair |
| Scenic Drive over Charlotte River | 1987 | 100 | Fair |
| Tuori Rd over South Br of Waiska River | 1993 | 100 | Fair |
| Whitney Bay Road over Private Truck Haul Road | 2006 | 100 | Good |
| S Salt Point Rd over E Br Tahquamenon River | 2010 | 94 | Good |
| Lower Hay Lake Rd over Charlotte River | 1988 | 88 | Fair |
| Curley Lewis FH42 over Ankodosh Creek | 1969 | 83 | Fair |
| Curley Lewis FH42 over Roxbury Creek | 1974 | 83 | Poor |
| Curley Lewis Hwy over Naomikong Creek | 1969 | 83 | Good |
| Irr Bia Rte 1 over 08/23 | 2002 | 60 | Good |
| Irr Bia Rte 1 over Drainage to Shunk Creek | 2002 | 60 | Good |
| Irr Bia Rte 1 over Drainage to Shunk Creek | 2002 | 60 | Good |
| Irr Bia Rte 2 over Drainage to Shunk Creek | 2002 | 60 | Good |
| North Hulbert Road over Tahquamenon River | 1986 | 54 | Poor |
| 12 Mile Road over Charlotte River | 1907 | 50 | Poor |
| Sullivan Creek Tr. over Black Creek | 1950 | 50 | Fair |
| Forrest Rd over East Br Waiska River | 1990 | 45 | Fair |
| Sullivan Crk Trail over Black Creek | 1950 | 40 | Fair |
| East-west Rd over Naomikong CR | 1947 | 30 | Poor |
| East-west Rd over Roxbury Creek | 1947 | 30 | Poor |
| East-west Road over Ankodosh Creek | 1948 | 30 | Fair |
| East-west Road over Naomikong Creek | 1947 | 30 | Fair |
| East-west Road over Roxbury Creek | 1947 | 30 | Fair |
| Shunk Road over Charlotte River | 1985 | 30 | Good |
| Huckleberry Road over Carp River | 1965 | 22 | Poor |
| Tone Road over Waiska River | 1990 | 21 | Fair |
| 11 Mile Road over S Br Charlotte River | 2005 | 20 | Fair |
| 16 Mile Rd over Little Munnscing | 2001 | 20 | Poor |
| Aldrich Road over East Br Munuscong River | 2002 | 20 | Fair |
| Prarie Road over Pine River | 1986 | 14 | Fair |
| 10 Mile Road over S Branch Charlotte River | 2005 | 10 | Good |
| 12 Mile Road over S Branch Charlotte | 2017 | 10 | Good |
| 23 Mile Road over East Br Munuscong River | 2002 | 10 | Good |
| 8 Mile Road over Sailors Creek | 1975 | 10 | Fair |
| Betsy Tower Road over Betsy River | 2004 | 10 | Fair |
| Humms Road over Private Truck Haul Road | 1960 | 10 | Fair |
| Maple Block Road over Betsy River | 1991 | 10 | Fair |
| Pennington Road over East Br Munuscong River | 1990 | 10 | Poor |
| Usfs Rte 3199 over Hendrie River | 1980 | 10 | Fair |
| Waiska River Trail over Spile Dam | 1976 | 10 | Fair |
| Waiska River Trail over Waiska River | 1976 | 10 | Fair |
| Obrien Road over East Br Munuscong River | 2004 | 5 | Fair |
| 1 1/2 Mile Road over St Marys River | 2016 | – | Good |