US-131 SB over 120th Ave
FairAllegan County, Michigan · 8.0 MI N of Plainwell · Structure no. 000000000000159
- Built
- 1959
- 66 years old, rebuilt 2012
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 113 ft
- 3 main spans
- Daily traffic
- 15,300
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
US-131 SB over 120th Ave is a prestressed concrete stringer/multi-beam or girder carrying US-131 SB over 120th Ave in Allegan County, Michigan. It was built in 1959 and reconstructed in 2012, so it is 66 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 15,300 vehicles a day, roughly 10% of them trucks, projected to reach 22,795 by 2018. The structure is 113 ft (34.4 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 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-131 SB over 120th Ave built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2012.
What condition is US-131 SB over 120th Ave 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 June 2023.
How much traffic does US-131 SB over 120th Ave carry?
About 15,300 vehicles per day (2009 count), of which roughly 10% are trucks.
How long is US-131 SB over 120th Ave?
The structure is 113 ft (34.4 m) long with a longest span of 41 ft (12.5 m) and a deck 47 ft wide.
Who owns US-131 SB over 120th Ave?
It is owned by the State Highway Agency.