M-46 over US-131
FairKent County, Michigan · 0.5 MI W of Cedar Springs · Structure no. 000000000005001
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 252 ft
- 2 main spans
- Daily traffic
- 16,700
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
M-46 over US-131 is a steel stringer/multi-beam or girder carrying M-46 over US-131 in Kent County, Michigan. It was built in 1971, so it is 54 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 6 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 16,700 vehicles a day, roughly 5% of them trucks, projected to reach 19,400 by 2037. The structure is 252 ft (76.8 m) long and 51 ft wide.
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was M-46 over US-131 built?
It was built in 1971, making it 54 years old in 2025.
What condition is M-46 over US-131 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 September 2024.
How much traffic does M-46 over US-131 carry?
About 16,700 vehicles per day (2017 count), of which roughly 5% are trucks.
How long is M-46 over US-131?
The structure is 252 ft (76.8 m) long with a longest span of 126 ft (38.4 m) and a deck 51 ft wide.
Who owns M-46 over US-131?
It is owned by the State Highway Agency.