S-21-1064 over Big Buck Branch
FairFlorence County, South Carolina · 1.6MI S Pamplico · Structure no. 000000000007457
- Built
- 1981
- 44 years old, rebuilt 1998
- Condition
- Fair
- inspected March 2024
- Type
- Slab
- Concrete
- Length
- 75 ft
- 5 main spans
- Daily traffic
- 175
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-21-1064 over Big Buck Branch is a concrete slab carrying S-21-1064 over Big Buck Branch in Florence County, South Carolina. It was built in 1981 and reconstructed in 1998, so it is 44 years old, younger 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 175 vehicles a day, roughly 5% of them trucks, projected to reach 224 by 2043. The structure is 75 ft (22.9 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-21-1064 over Big Buck Branch built?
It was built in 1981, making it 44 years old in 2025. It was reconstructed in 1998.
What condition is S-21-1064 over Big Buck Branch 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 March 2024.
How much traffic does S-21-1064 over Big Buck Branch carry?
About 175 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S-21-1064 over Big Buck Branch?
The structure is 75 ft (22.9 m) long with a longest span of 15 ft (4.6 m) and a deck 33 ft wide.
Who owns S-21-1064 over Big Buck Branch?
It is owned by the State Highway Agency.