M-37 (bedford Rd) over Kalamazoo River
FairCalhoun County, Michigan · 1.3 MI N of I-94 Bl · Structure no. 000000000001413
- Built
- 1973
- 52 years old, rebuilt 2006
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 333 ft
- 5 main spans
- Daily traffic
- 12,841
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
M-37 (bedford Rd) over Kalamazoo River is a prestressed concrete stringer/multi-beam or girder carrying M-37 (bedford Rd) over Kalamazoo River in Calhoun County, Michigan. It was built in 1973 and reconstructed in 2006, so it is 52 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 12,841 vehicles a day, roughly 5% of them trucks, projected to reach 16,534 by 2018. The structure is 333 ft (101.6 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was M-37 (bedford Rd) over Kalamazoo River built?
It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2006.
What condition is M-37 (bedford Rd) over Kalamazoo River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.
How much traffic does M-37 (bedford Rd) over Kalamazoo River carry?
About 12,841 vehicles per day (2007 count), of which roughly 5% are trucks.
How long is M-37 (bedford Rd) over Kalamazoo River?
The structure is 333 ft (101.6 m) long with a longest span of 66 ft (20.1 m) and a deck 64 ft wide.
Who owns M-37 (bedford Rd) over Kalamazoo River?
It is owned by the State Highway Agency.