S-21-69 over Sparrow Swamp
FairFlorence County, South Carolina · 1 MI NE Sardis · Structure no. 000000000002724
- Built
- 1958
- 67 years old, rebuilt 1996
- Condition
- Fair
- inspected April 2023
- Type
- Slab
- Concrete
- Length
- 120 ft
- 8 main spans
- Daily traffic
- 350
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-21-69 over Sparrow Swamp is a concrete slab carrying S-21-69 over Sparrow Swamp in Florence County, South Carolina. It was built in 1958 and reconstructed in 1996, so it is 67 years old, older than the South Carolina average of 48 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 350 vehicles a day, roughly 16% of them trucks, projected to reach 487 by 2043. The structure is 120 ft (36.6 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 S-21-69 over Sparrow Swamp built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1996.
What condition is S-21-69 over Sparrow Swamp 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 April 2023.
How much traffic does S-21-69 over Sparrow Swamp carry?
About 350 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is S-21-69 over Sparrow Swamp?
The structure is 120 ft (36.6 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.
Who owns S-21-69 over Sparrow Swamp?
It is owned by the State Highway Agency.