US 78 EB over S-43/N.A.D RD
GoodCharleston County, South Carolina · North Charleston · Structure no. 000000000009931
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 207 ft
- 1 main span
- Daily traffic
- 49,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 78 EB over S-43/N.A.D RD is a steel stringer/multi-beam or girder carrying US 78 EB over S-43/N.A.D RD in Charleston County, South Carolina. It was built in 2003, so it is 22 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 49,300 vehicles a day, roughly 2% of them trucks, projected to reach 70,499 by 2043. The structure is 207 ft (63.2 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 78 EB over S-43/N.A.D RD built?
It was built in 2003, making it 22 years old in 2025.
What condition is US 78 EB over S-43/N.A.D RD 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 June 2024.
How much traffic does US 78 EB over S-43/N.A.D RD carry?
About 49,300 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is US 78 EB over S-43/N.A.D RD?
The structure is 207 ft (63.2 m) long with a longest span of 207 ft (63.2 m) and a deck 31 ft wide.
Who owns US 78 EB over S-43/N.A.D RD?
It is owned by the State Highway Agency.