US 78/KING ST over RR CSXT & S-39
GoodCharleston County, South Carolina · North Charleston · Structure no. 000000000000229
- Built
- 2015
- 10 years old
- Condition
- Good
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 1,230 ft
- 8 main spans
- Daily traffic
- 10,100
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 78/KING ST over RR CSXT & S-39 is a steel continuous stringer/multi-beam or girder carrying US 78/KING ST over RR CSXT & S-39 in Charleston County, South Carolina. It was built in 2015, so it is 10 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 10,100 vehicles a day, roughly 7% of them trucks, projected to reach 12,322 by 2043. The structure is 1,230 ft (375 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 78/KING ST over RR CSXT & S-39 built?
It was built in 2015, making it 10 years old in 2025.
What condition is US 78/KING ST over RR CSXT & S-39 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/KING ST over RR CSXT & S-39 carry?
About 10,100 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is US 78/KING ST over RR CSXT & S-39?
The structure is 1,230 ft (375 m) long with a longest span of 220 ft (67.1 m) and a deck 46 ft wide.
Who owns US 78/KING ST over RR CSXT & S-39?
It is owned by the State Highway Agency.