US 78 over I-26
GoodCharleston County, South Carolina · 7 MI N of N Chas · Structure no. 000000000003826
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 276 ft
- 4 main spans
- Daily traffic
- 49,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 78 over I-26 is a prestressed concrete continuous stringer/multi-beam or girder carrying US 78 over I-26 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 276 ft (84.1 m) long and 110 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 | 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 over I-26 built?
It was built in 2003, making it 22 years old in 2025.
What condition is US 78 over I-26 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 July 2024.
How much traffic does US 78 over I-26 carry?
About 49,300 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is US 78 over I-26?
The structure is 276 ft (84.1 m) long with a longest span of 98 ft (29.9 m) and a deck 110 ft wide.
Who owns US 78 over I-26?
It is owned by the State Highway Agency.