S-21-46 over Spring Branch Creek
FairFlorence County, South Carolina · 6 MI NE Hyman · Structure no. 000000000005723
- Built
- 1970
- 55 years old, rebuilt 2006
- Condition
- Fair
- inspected April 2023
- Type
- Slab
- Concrete
- Length
- 45 ft
- 3 main spans
- Daily traffic
- 1,350
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-21-46 over Spring Branch Creek is a concrete slab carrying S-21-46 over Spring Branch Creek in Florence County, South Carolina. It was built in 1970 and reconstructed in 2006, so it is 55 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 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 1,350 vehicles a day, roughly 14% of them trucks, projected to reach 1,728 by 2043. The structure is 45 ft (13.7 m) long and 28 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-21-46 over Spring Branch Creek built?
It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2006.
What condition is S-21-46 over Spring Branch 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 April 2023.
How much traffic does S-21-46 over Spring Branch Creek carry?
About 1,350 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is S-21-46 over Spring Branch Creek?
The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.
Who owns S-21-46 over Spring Branch Creek?
It is owned by the State Highway Agency.