I - 20 over Norfolk Southern
FairSt. Clair County, Alabama · .1 MI W. Riverside Exit · Structure no. 007221
- Built
- 1961
- 64 years old, rebuilt 1993
- Condition
- Fair
- inspected November 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 193 ft
- 3 main spans
- Daily traffic
- 43,320
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I - 20 over Norfolk Southern is a concrete continuous tee beam carrying I - 20 over Norfolk Southern in St. Clair County, Alabama. It was built in 1961 and reconstructed in 1993, so it is 64 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 43,320 vehicles a day, roughly 35% of them trucks, projected to reach 52,338 by 2044. The structure is 193 ft (58.8 m) long and 148 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I - 20 over Norfolk Southern built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1993.
What condition is I - 20 over Norfolk Southern 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 November 2024.
How much traffic does I - 20 over Norfolk Southern carry?
About 43,320 vehicles per day (2024 count), of which roughly 35% are trucks.
How long is I - 20 over Norfolk Southern?
The structure is 193 ft (58.8 m) long with a longest span of 73 ft (22.3 m) and a deck 148 ft wide.
Who owns I - 20 over Norfolk Southern?
It is owned by the State Highway Agency.