56 Th Street FH32 over Pere Marquette River
Lake County, Michigan · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 56 Th Street FH32 over Pere Marquette River in Lake County, Michigan, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1997, making it 28 years old at the 2025 inventory.
- It carries about 1,400 vehicles a day (traffic count year 2005).
- Its listed owner is the county highway agency.
- It is one of 13 of the 31 inventoried bridges in Lake County rated good (41.9%); 5 (16.1%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (43.88704, -85.93704)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 108 ft |
| Location | 4 Mi W of Baldwin |
| NBI structure number | 000000000005277 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.
Busiest bridges in Lake County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| M-37 over Pere Marquette River | 1922 | 4,771 | Fair |
| M-37 over Baldwin Creek | 1929 | 4,771 | Fair |
| US-10 over Baldwin Creek | 1931 | 3,813 | Fair |
| US-10 over Sanborn Creek | 1934 | 3,813 | Fair |
| M-37 over Little Manistee River | 1939 | 2,500 | Good |
| 76 Th Street over So Br Pere Marquette Riv | 1998 | 1,000 | Good |
All bridges nearby: Lake County, MI bridge conditions · every bridge in Lake County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.