US-131 SB over Muskegon River
FairMecosta County, Michigan · 5 MI South Big Rapids · Structure no. 000000000006717
- Built
- 1983
- 42 years old
- Condition
- Fair
- inspected July 2023
- Type
- Segmental Box Girder
- Prestressed Concrete Continuous
- Length
- 580 ft
- 3 main spans
- Daily traffic
- 18,000
- 2012 count
- Owner
- State
- State Highway Agency
About this bridge
US-131 SB over Muskegon River is a prestressed concrete continuous segmental box girder carrying US-131 SB over Muskegon River in Mecosta County, Michigan. It was built in 1983, so it is 42 years old, younger 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 18,000 vehicles a day, roughly 9% of them trucks, projected to reach 20,700 by 2032. The structure is 580 ft (176.8 m) long and 46 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 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-131 SB over Muskegon River built?
It was built in 1983, making it 42 years old in 2025.
What condition is US-131 SB over Muskegon 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 US-131 SB over Muskegon River carry?
About 18,000 vehicles per day (2012 count), of which roughly 9% are trucks.
How long is US-131 SB over Muskegon River?
The structure is 580 ft (176.8 m) long with a longest span of 270 ft (82.3 m) and a deck 46 ft wide.
Who owns US-131 SB over Muskegon River?
It is owned by the State Highway Agency.