Bridge conditions in Charlevoix County, Michigan
18 inventoried bridges · 2 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
About one in 9 bridges in Charlevoix County is rated in poor condition: 2 of 18 on the federal inventory, one of the higher shares in Michigan.
- 2 of the 18 bridges in Charlevoix County, Michigan, are rated in poor condition (11.1%) in the 2025 National Bridge Inventory, as of .
- 7 bridges (38.9%) are rated good and 9 (50.0%) fair.
- The median Charlevoix County bridge was built in 1974.
- The busiest poor-rated bridge is Springvale Road over Bear River (built 1950), carrying about 1,280 vehicles a day.
Good 38.9% · Fair 50.0% · Poor 11.1% of 18 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 |
|---|---|---|---|
| Springvale Road over Bear River | 1950 | 1,280 | Poor |
| Iron Bridge Road over Sturgeon River | 1900 | 3 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-31 over Pine River | 1949 | 15,321 | Fair |
| US-131 over Boyne River | 1947 | 6,736 | Fair |
| M-75|s East St over Boyne River | 1974 | 6,546 | Fair |
| Park Street over Boyne River | 1991 | 5,000 | Fair |
| M-32|water St over S Arm Lake Charlevoix | 1959 | 4,600 | Fair |
| Lake Street over Boyne River | 1959 | 3,000 | Fair |
| M-32|maple St over Deer Creek | 1949 | 2,665 | Fair |
| Thumb Lake Road over N Br Boyne River | 2003 | 2,545 | Good |
| Rogers Road over Jordan River | 1958 | 1,794 | Fair |
| Ferry Road over Porter Creek | 2000 | 1,396 | 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.