M-21 over Crawford Drain
GoodShiawassee County, Michigan · 0.6 MI W of Genesee Col · Structure no. 000000000009774
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected July 2023
- Type
- Culvert
- Concrete
- Length
- 28 ft
- 1 main span
- Daily traffic
- 8,200
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
M-21 over Crawford Drain is a concrete culvert carrying M-21 over Crawford Drain in Shiawassee County, Michigan. It was built in 2009, so it is 16 years old, younger than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 8,200 vehicles a day, roughly 5% of them trucks, projected to reach 9,200 by 2029. The structure is 28 ft (8.6 m) long. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was M-21 over Crawford Drain built?
It was built in 2009, making it 16 years old in 2025.
What condition is M-21 over Crawford Drain in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.
How much traffic does M-21 over Crawford Drain carry?
About 8,200 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is M-21 over Crawford Drain?
The structure is 28 ft (8.6 m) long with a longest span of 28 ft (8.6 m).
Who owns M-21 over Crawford Drain?
It is owned by the State Highway Agency.