US 78 over Edisto River Swamp
GoodOrangeburg County, South Carolina · 3MI SW of Branchville · Structure no. 000000000000571
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected December 2023
- Type
- Slab
- Concrete Continuous
- Length
- 240 ft
- 8 main spans
- Daily traffic
- 2,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 78 over Edisto River Swamp is a concrete continuous slab carrying US 78 over Edisto River Swamp in Orangeburg County, South Carolina. It was built in 2011, so it is 14 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 2,000 vehicles a day, roughly 21% of them trucks, projected to reach 3,480 by 2043. The structure is 240 ft (73.2 m) long and 47 ft wide. If it were closed, the detour would be 8.1 mi (13 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 US 78 over Edisto River Swamp built?
It was built in 2011, making it 14 years old in 2025.
What condition is US 78 over Edisto River 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 December 2023.
How much traffic does US 78 over Edisto River Swamp carry?
About 2,000 vehicles per day (2023 count), of which roughly 21% are trucks.
How long is US 78 over Edisto River Swamp?
The structure is 240 ft (73.2 m) long with a longest span of 30 ft (9.1 m) and a deck 47 ft wide.
Who owns US 78 over Edisto River Swamp?
It is owned by the State Highway Agency.