Sc 51 over Middle Swamp
GoodFlorence County, South Carolina · 2MI SE Florence · Structure no. 000000000007994
- Built
- 1986
- 39 years old
- Condition
- Good
- inspected November 2023
- Type
- Slab
- Concrete
- Length
- 180 ft
- 6 main spans
- Daily traffic
- 22,700
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Sc 51 over Middle Swamp is a concrete slab carrying Sc 51 over Middle Swamp in Florence County, South Carolina. It was built in 1986, so it is 39 years old, younger than the South Carolina average of 48 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 22,700 vehicles a day, roughly 2% of them trucks, projected to reach 15,209 by 2043. The structure is 180 ft (54.9 m) long and 76 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 Sc 51 over Middle Swamp built?
It was built in 1986, making it 39 years old in 2025.
What condition is Sc 51 over Middle Swamp in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.
How much traffic does Sc 51 over Middle Swamp carry?
About 22,700 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is Sc 51 over Middle Swamp?
The structure is 180 ft (54.9 m) long with a longest span of 30 ft (9.1 m) and a deck 76 ft wide.
Who owns Sc 51 over Middle Swamp?
It is owned by the State Highway Agency.