S-21-13 over Middle Branch
FairPosted for loadFlorence County, South Carolina · 7 MI E Florence · Structure no. 000000000003652
- Built
- 1961
- 64 years old, rebuilt 1998
- Condition
- Fair
- inspected March 2023
- Type
- Slab
- Concrete
- Length
- 45 ft
- 3 main spans
- Daily traffic
- 1,850
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-21-13 over Middle Branch is a concrete slab carrying S-21-13 over Middle Branch in Florence County, South Carolina. It was built in 1961 and reconstructed in 1998, so it is 64 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. Its operating status is: posted for load restriction.
It carries about 1,850 vehicles a day, roughly 7% of them trucks, projected to reach 2,424 by 2043. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-21-13 over Middle Branch built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1998.
What condition is S-21-13 over Middle 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 2023.
How much traffic does S-21-13 over Middle Branch carry?
About 1,850 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is S-21-13 over Middle Branch?
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-21-13 over Middle Branch?
It is owned by the State Highway Agency.