Poor Condition Bridges in Michigan
1,250 bridges rated Poor condition in Michigan. FHWA National Bridge Inventory.
Bridges Rated Poor Condition
A bridge is rated Poor when one or more of its major components (deck, superstructure, or substructure) has a condition rating of 4 or below on the FHWA 0–9 scale. Poor condition does not mean imminent danger of collapse, but indicates significant deterioration requiring priority maintenance or replacement. There are 1,250 such bridges in Michigan.
| Bridge | State | Condition | Year Built | ADT | Length |
|---|---|---|---|---|---|
| ROCKY CREEK | Michigan | 1940 | 890 | 7.6 m | |
| I-69 | Michigan | 1966 | 883 | 67.7 m | |
| SILVER RIVER | Michigan | 1950 | 853 | 28.9 m | |
| COLDWATER RIVER | Michigan | 1957 | 851 | 30.7 m | |
| BLACK RIVER | Michigan | 1974 | 850 | 55.6 m | |
| SWAN CREEK | Michigan | 1972 | 850 | 36.5 m | |
| S BRA KALAMAZOO RIVER | Michigan | 1979 | 839 | 39.6 m | |
| UNION RIVER | Michigan | 1976 | 831 | 22.8 m | |
| BIG IRON RIVER | Michigan | 1938 | 831 | 42.7 m | |
| LITTLE IRON RIVER | Michigan | 1967 | 831 | 22.8 m | |
| SUCKER CREEK | Michigan | 1936 | 830 | 8.2 m | |
| HOG CREEK DRAIN #40 | Michigan | 1928 | 830 | 10.5 m | |
| LITTLE SWAN CREEK | Michigan | 1963 | 824 | 7.9 m | |
| WILLOW CREEK | Michigan | 1970 | 816 | 69.8 m | |
| BLACK RIVER | Michigan | 1974 | 800 | 14.6 m | |
| MIDDLE ROUGE RIVER | Michigan | 1959 | 800 | 23.7 m | |
| I-69 | Michigan | 1966 | 800 | 70.7 m | |
| NORTH BRANCH SALT RIVER | Michigan | 1966 | 798 | 17.4 m | |
| NORTH BRANCH CLINTON R | Michigan | 1964 | 790 | 30.4 m | |
| DRAIN #96 | Michigan | 1968 | 790 | 12.5 m | |
| KAWKAWLIN RIVER | Michigan | 1959 | 784 | 44.2 m | |
| PAW PAW RIVER | Michigan | 1970 | 780 | 36.8 m | |
| ROUGE RIVER | Michigan | 1961 | 779 | 9.3 m | |
| SANDSTONE CREEK | Michigan | 1944 | 765 | 7.3 m | |
| N B CLINTON RIVER | Michigan | 1955 | 760 | 11.5 m | |
| BETSIE RIVER | Michigan | 1974 | 760 | 13.4 m | |
| BLACK CREEK | Michigan | 1970 | 755 | 28.0 m | |
| LEVERIDGE DRAIN | Michigan | 1972 | 754 | 9.9 m | |
| N BR ECORSE RIVER | Michigan | 1968 | 750 | 15.8 m | |
| HURON RIVER | Michigan | 1964 | 750 | 12.2 m | |
| MENOMINEE RIVER | Michigan | 1967 | 749 | 138.7 m | |
| MUD CREEK | Michigan | 1963 | 746 | 10.0 m | |
| MIDDLE BR DRAIN | Michigan | 1930 | 742 | 7.1 m | |
| SAND CREEK | Michigan | 1972 | 740 | 10.9 m | |
| N BRANCH CROCKERY CREEK | Michigan | 1973 | 735 | 16.7 m | |
| PRAIRIE RIVER | Michigan | 1979 | 733 | 20.1 m | |
| PINE RIVER | Michigan | 1987 | 730 | 31.7 m | |
| AU SABLE RIVER | Michigan | 1976 | 730 | 60.9 m | |
| ORE CREEK | Michigan | 1923 | 730 | 6.2 m | |
| COLDWATER RIVER | Michigan | 1971 | 716 | 23.7 m | |
| KALAMAZOO RIVER | Michigan | 1968 | 714 | 58.5 m | |
| S BR BLACK RIVER | Michigan | 1967 | 705 | 16.4 m | |
| ELK RIVER | Michigan | 1979 | 704 | 32.9 m | |
| BRENT RUN | Michigan | 1929 | 701 | 10.6 m | |
| SANDSTONE CREEK | Michigan | 1973 | 700 | 23.7 m | |
| SOUTH BR CHIPPEWA RIVER | Michigan | 1974 | 693 | 15.8 m | |
| I-94 | Michigan | 1964 | 690 | 88.9 m | |
| RABBIT RIVER | Michigan | 1971 | 682 | 23.7 m | |
| I-75 | Michigan | 1956 | 680 | 92.3 m | |
| MAPLE RIVER | Michigan | 1970 | 677 | 48.4 m |
About Poor Condition Bridge Ratings
FHWA rates bridge components on a 0–9 scale. A rating of 4 or below on any major component (deck, superstructure, substructure) classifies the bridge as Poor condition. The bridge remains open to traffic but requires priority attention. Bridges rated 0–2 are immediately closed.