M-37 over Little Manistee River
GoodLake County, Michigan · 7.5 MI S of S Wexford Col · Structure no. 000000000005272
- Built
- 1939
- 86 years old, rebuilt 2008
- Condition
- Good
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 40 ft
- 1 main span
- Daily traffic
- 2,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
M-37 over Little Manistee River is a prestressed concrete stringer/multi-beam or girder carrying M-37 over Little Manistee River in Lake County, Michigan. It was built in 1939 and reconstructed in 2008, so it is 86 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 2,500 vehicles a day, roughly 5% of them trucks, projected to reach 3,000 by 2038. The structure is 40 ft (12.2 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was M-37 over Little Manistee River built?
It was built in 1939, making it 86 years old in 2025. It was reconstructed in 2008.
What condition is M-37 over Little Manistee River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.
How much traffic does M-37 over Little Manistee River carry?
About 2,500 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is M-37 over Little Manistee River?
The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.4 m) and a deck 47 ft wide.
Who owns M-37 over Little Manistee River?
It is owned by the State Highway Agency.