Bridge conditions in Oakland County, Michigan
513 inventoried bridges · 35 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 513 bridges in Oakland County: 215 rated good, 263 fair, and 35 poor.
- 35 of the 513 bridges in Oakland County, Michigan, are rated in poor condition (6.8%) in the 2025 National Bridge Inventory, as of .
- 215 bridges (41.9%) are rated good and 263 (51.3%) fair.
- The median Oakland County bridge was built in 1983.
- The busiest poor-rated bridge is I-696 over I-75 & 4 Ramps (built 1971), carrying about 209,200 vehicles a day.
Good 41.9% · Fair 51.3% · Poor 6.8% of 513 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-696 over I-75 & 4 Ramps | 1971 | 209,200 | Poor |
| I-75 Br over Clinton River | 1964 | 40,292 | Poor |
| I-75 NB over Clarkston Rd | 1962 | 35,763 | Poor |
| Sashabaw Rd over Clinton River | 1928 | 15,800 | Poor |
| 9 Mile Rd over Caddell Drain | 1973 | 10,800 | Poor |
| Martin Luther King over Grand Trunk Western RR | 1976 | 8,700 | Poor |
| 9 Mile Road over Thornton Creek | 1970 | 8,260 | Poor |
| Seymour Lake Road over Paint Creek | 1962 | 7,813 | Poor |
| Inkster Road over Rouge River | 1970 | 7,529 | Poor |
| Inkster Road over Rouge River | 1963 | 5,814 | Poor |
| Franklin over Rouge River | 1959 | 5,600 | Poor |
| Shiawassee Street over Branch Upper Rouge River | 1981 | 4,290 | Poor |
| Fourteen Mile over Franklin River | 1961 | 3,770 | Poor |
| Tuck Rd over Upper Rouge River | 1925 | 2,370 | Poor |
| Derby St over Grand Trunk Western RR | 1930 | 1,952 | Poor |
| Gunn over Paint Creek | 1958 | 1,750 | Poor |
| Bridge Street over River Rouge | 1972 | 1,248 | Poor |
| Martindale over Novi-lyon Drain | 1970 | 1,080 | Poor |
| Chesterfield Rd over Quarton Br/rouge River | 1979 | 1,000 | Poor |
| Willits Street over Rouge River | 1961 | 779 | Poor |
| Dawson over Huron River | 1964 | 750 | Poor |
| Spaulding Rd over Novi-lyon Drain | 1961 | 500 | Poor |
| Gillespie Ave over Clinton River | 1936 | 500 | Poor |
| Meadowwood Road over Devonshire Drain | 1986 | 500 | Poor |
| Cedar Key Drive over Voorheis Lake | 1985 | 500 | Poor |
| Willow Beach Road over Channel Dollar & Cass Lk | 1984 | 480 | Poor |
| Winkler Mill over Stony Creek | 1967 | 346 | Poor |
| County Line Road over Kearsley Drain | 1995 | 340 | Poor |
| Silver Bell over Paint Creek | 1961 | 326 | Poor |
| Twelve Mile over Novi-lyon Drain | 1961 | 300 | Poor |
| Deer Hill Drive over Deer Lake Creek | 1977 | 200 | Poor |
| Edgeorge Street over Clinton River | 1956 | 200 | Poor |
| Emburke Blvd over Clinton River | 1959 | 200 | Poor |
| Ashbury Drive over Middle Br Rouge River | 1991 | 100 | Poor |
| Brewer Road over Stoney Creek | 1984 | 50 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-696 over I-75 & 4 Ramps | 1971 | 209,200 | Poor |
| I-696 over N Service Rd | 1971 | 209,200 | Fair |
| I-696 over N-s Service Road | 1982 | 192,100 | Fair |
| I-96 EB over 9 Mile Rd | 1971 | 182,700 | Fair |
| I-96 WB over 9 Mi Rd | 1972 | 182,700 | Fair |
| I-696 over Drake Rd | 1960 | 180,375 | Good |
| I-696 EB over Inkster Rd | 1988 | 172,600 | Fair |
| I-696 over Pebble Creek | 2023 | 158,700 | Good |
| I-96 over Bassett Drain | 2024 | 152,700 | Good |
| I-696 over Minnow Pond Drain | 2023 | 129,433 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Michigan: Michigan bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.