Al 21 over Big Swamp Creek
FairLowndes County, Alabama · 1 MI N of County RD 2 · Structure no. 012776
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 337 ft
- 1 main span
- Daily traffic
- 3,930
- 2013 count
- Owner
- State
- State Highway Agency
About this bridge
Al 21 over Big Swamp Creek is a steel stringer/multi-beam or girder carrying Al 21 over Big Swamp Creek in Lowndes County, Alabama. It was built in 1982, so it is 43 years old, younger 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 3,930 vehicles a day, roughly 3% of them trucks, projected to reach 4,901 by 2033. The structure is 337 ft (102.7 m) long and 43 ft wide. If it were closed, the detour would be 31.1 mi (50 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. |
| 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 Al 21 over Big Swamp Creek built?
It was built in 1982, making it 43 years old in 2025.
What condition is Al 21 over Big Swamp Creek 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 June 2024.
How much traffic does Al 21 over Big Swamp Creek carry?
About 3,930 vehicles per day (2013 count), of which roughly 3% are trucks.
How long is Al 21 over Big Swamp Creek?
The structure is 337 ft (102.7 m) long with a longest span of 65 ft (19.8 m) and a deck 43 ft wide.
Who owns Al 21 over Big Swamp Creek?
It is owned by the State Highway Agency.