US-127 SB over M-21
FairClinton County, Michigan · 1.6 MI E of US-127 Br · Structure no. 000000000001829
- Built
- 1993
- 32 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 128 ft
- 1 main span
- Daily traffic
- 10,100
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US-127 SB over M-21 is a prestressed concrete stringer/multi-beam or girder carrying US-127 SB over M-21 in Clinton County, Michigan. It was built in 1993, so it is 32 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 10,100 vehicles a day, roughly 8% of them trucks, projected to reach 11,163 by 2040. The structure is 128 ft (39 m) long and 47 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 | 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 US-127 SB over M-21 built?
It was built in 1993, making it 32 years old in 2025.
What condition is US-127 SB over M-21 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 May 2024.
How much traffic does US-127 SB over M-21 carry?
About 10,100 vehicles per day (2020 count), of which roughly 8% are trucks.
How long is US-127 SB over M-21?
The structure is 128 ft (39 m) long with a longest span of 126 ft (38.5 m) and a deck 47 ft wide.
Who owns US-127 SB over M-21?
It is owned by the State Highway Agency.