M-20 over US-131 SB
FairMecosta County, Michigan · 1.0 MI W of Big Rapids · Structure no. 000000000006736
- Built
- 1981
- 44 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 163 ft
- 3 main spans
- Daily traffic
- 15,942
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
M-20 over US-131 SB is a steel stringer/multi-beam or girder carrying M-20 over US-131 SB in Mecosta County, Michigan. It was built in 1981, so it is 44 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 15,942 vehicles a day, roughly 4% of them trucks, projected to reach 18,269 by 2018. The structure is 163 ft (49.7 m) long and 101 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-20 over US-131 SB built?
It was built in 1981, making it 44 years old in 2025.
What condition is M-20 over US-131 SB 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 M-20 over US-131 SB carry?
About 15,942 vehicles per day (2007 count), of which roughly 4% are trucks.
How long is M-20 over US-131 SB?
The structure is 163 ft (49.7 m) long with a longest span of 98 ft (29.8 m) and a deck 101 ft wide.
Who owns M-20 over US-131 SB?
It is owned by the State Highway Agency.