US 17 SB over Wallace River
FairCharleston County, South Carolina · 5 MI NE of Ravenel · Structure no. 000000000005902
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected June 2024
- Type
- Tee Beam
- Concrete
- Length
- 300 ft
- 9 main spans
- Daily traffic
- 17,950
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 17 SB over Wallace River is a concrete tee beam carrying US 17 SB over Wallace River in Charleston County, South Carolina. It was built in 1971, so it is 54 years old, older 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 5 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 17,950 vehicles a day, roughly 11% of them trucks, projected to reach 31,233 by 2043. The structure is 300 ft (91.4 m) long and 43 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 17 SB over Wallace River built?
It was built in 1971, making it 54 years old in 2025.
What condition is US 17 SB over Wallace River 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 17 SB over Wallace River carry?
About 17,950 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is US 17 SB over Wallace River?
The structure is 300 ft (91.4 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.
Who owns US 17 SB over Wallace River?
It is owned by the State Highway Agency.