M-40 M-89 over Kalamazoo River
PoorAllegan County, Michigan · 2.3 MI NW of Allegan · Structure no. 000000000000137
- Built
- 1938
- 87 years old, rebuilt 1995
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 224 ft
- 5 main spans
- Daily traffic
- 8,300
- 2013 count
- Owner
- State
- State Highway Agency
About this bridge
M-40 M-89 over Kalamazoo River is a prestressed concrete stringer/multi-beam or girder carrying M-40 M-89 over Kalamazoo River in Allegan County, Michigan. It was built in 1938 and reconstructed in 1995, so it is 87 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 8,300 vehicles a day, roughly 7% of them trucks, projected to reach 12,263 by 2018. The structure is 224 ft (68.2 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
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was M-40 M-89 over Kalamazoo River built?
It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1995.
What condition is M-40 M-89 over Kalamazoo River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.
How much traffic does M-40 M-89 over Kalamazoo River carry?
About 8,300 vehicles per day (2013 count), of which roughly 7% are trucks.
How long is M-40 M-89 over Kalamazoo River?
The structure is 224 ft (68.2 m) long with a longest span of 44 ft (13.3 m) and a deck 47 ft wide.
Who owns M-40 M-89 over Kalamazoo River?
It is owned by the State Highway Agency.