21 Mile Road over US-131
FairMecosta County, Michigan · 3 MI S of Osceola CO Line · Structure no. 000000000006743
- Built
- 1984
- 41 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 347 ft
- 3 main spans
- Daily traffic
- 150
- 1982 count
- Owner
- State
- State Highway Agency
About this bridge
21 Mile Road over US-131 is a steel continuous stringer/multi-beam or girder carrying 21 Mile Road over US-131 in Mecosta County, Michigan. It was built in 1984, so it is 41 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 150 vehicles a day, roughly 3% of them trucks, projected to reach 150 by 1977. The structure is 347 ft (105.7 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 21 Mile Road over US-131 built?
It was built in 1984, making it 41 years old in 2025.
What condition is 21 Mile Road 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 June 2023.
How much traffic does 21 Mile Road over US-131 carry?
About 150 vehicles per day (1982 count), of which roughly 3% are trucks.
How long is 21 Mile Road over US-131?
The structure is 347 ft (105.7 m) long with a longest span of 118 ft (35.9 m) and a deck 40 ft wide.
Who owns 21 Mile Road over US-131?
It is owned by the State Highway Agency.