US 78 over Popperdam Creek
FairCharleston County, South Carolina · 1.0 MI SE Ladson · Structure no. 000000000006052
- Built
- 2001
- 24 years old
- Condition
- Fair
- inspected June 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 57 ft
- 1 main span
- Daily traffic
- 46,700
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 78 over Popperdam Creek is a prestressed concrete tee beam carrying US 78 over Popperdam Creek in Charleston County, South Carolina. It was built in 2001, so it is 24 years old, younger than the South Carolina average of 48 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 46,700 vehicles a day, roughly 4% of them trucks, projected to reach 66,781 by 2043. The structure is 57 ft (17.4 m) long and 77 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 78 over Popperdam Creek built?
It was built in 2001, making it 24 years old in 2025.
What condition is US 78 over Popperdam Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.
How much traffic does US 78 over Popperdam Creek carry?
About 46,700 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is US 78 over Popperdam Creek?
The structure is 57 ft (17.4 m) long with a longest span of 57 ft (17.4 m) and a deck 77 ft wide.
Who owns US 78 over Popperdam Creek?
It is owned by the State Highway Agency.