US-23 SB over River Raisin
FairMonroe County, Michigan · 1.0 MI S of M-50 · Structure no. 000000000007094
- Built
- 1958
- 67 years old, rebuilt 2003
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 250 ft
- 3 main spans
- Daily traffic
- 17,262
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
US-23 SB over River Raisin is a steel stringer/multi-beam or girder carrying US-23 SB over River Raisin in Monroe County, Michigan. It was built in 1958 and reconstructed in 2003, so it is 67 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 5 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 17,262 vehicles a day, roughly 17% of them trucks, projected to reach 19,397 by 2018. The structure is 250 ft (76.2 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-23 SB over River Raisin built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2003.
What condition is US-23 SB over River Raisin 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 2023.
How much traffic does US-23 SB over River Raisin carry?
About 17,262 vehicles per day (2007 count), of which roughly 17% are trucks.
How long is US-23 SB over River Raisin?
The structure is 250 ft (76.2 m) long with a longest span of 100 ft (30.4 m) and a deck 36 ft wide.
Who owns US-23 SB over River Raisin?
It is owned by the State Highway Agency.