Al - 3 South over 21 ST Ave So
FairJefferson County, Alabama · US 31 * 21 ST Ave So · Structure no. 008235
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected February 2025
- Type
- Tee Beam
- Concrete Continuous
- Length
- 195 ft
- 3 main spans
- Daily traffic
- 39,880
- 2025 count
- Owner
- State
- State Highway Agency
About this bridge
Al - 3 South over 21 ST Ave So is a concrete continuous tee beam carrying Al - 3 South over 21 ST Ave So in Jefferson County, Alabama. It was built in 1964, so it is 61 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 39,880 vehicles a day, roughly 3% of them trucks, projected to reach 51,228 by 2045. The structure is 195 ft (59.4 m) long and 43 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 Al - 3 South over 21 ST Ave So built?
It was built in 1964, making it 61 years old in 2025.
What condition is Al - 3 South over 21 ST Ave So 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 Al - 3 South over 21 ST Ave So carry?
About 39,880 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Al - 3 South over 21 ST Ave So?
The structure is 195 ft (59.4 m) long with a longest span of 74 ft (22.6 m) and a deck 43 ft wide.
Who owns Al - 3 South over 21 ST Ave So?
It is owned by the State Highway Agency.