ST Clair CO over Cahaba River
FairSt. Clair County, Alabama · 1 0 MI NW Whites Chapel · Structure no. 010615
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected February 2025
- Type
- Channel Beam
- Concrete
- Length
- 204 ft
- 2 main spans
- Daily traffic
- 5,090
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
ST Clair CO over Cahaba River is a concrete channel beam carrying ST Clair CO over Cahaba River in St. Clair County, Alabama. It was built in 1971, so it is 54 years old, older than the Alabama average of 51.1 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 5,090 vehicles a day, roughly 4% of them trucks, projected to reach 7,563 by 2037. The structure is 204 ft (62.2 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 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. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was ST Clair CO over Cahaba River built?
It was built in 1971, making it 54 years old in 2025.
What condition is ST Clair CO over Cahaba River 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 February 2025.
How much traffic does ST Clair CO over Cahaba River carry?
About 5,090 vehicles per day (2017 count), of which roughly 4% are trucks.
How long is ST Clair CO over Cahaba River?
The structure is 204 ft (62.2 m) long with a longest span of 34 ft (10.4 m) and a deck 32 ft wide.
Who owns ST Clair CO over Cahaba River?
It is owned by the County Highway Agency.