S-15-27 over Willow Swamp
GoodColleton County, South Carolina · 14.5 MI NW Waltb · Structure no. 000000000007772
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected March 2025
- Type
- Slab
- Concrete
- Length
- 180 ft
- 6 main spans
- Daily traffic
- 125
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-15-27 over Willow Swamp is a concrete slab carrying S-15-27 over Willow Swamp in Colleton County, South Carolina. It was built in 1984, so it is 41 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 125 vehicles a day, roughly 12% of them trucks, projected to reach 160 by 2043. The structure is 180 ft (54.9 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 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 S-15-27 over Willow Swamp built?
It was built in 1984, making it 41 years old in 2025.
What condition is S-15-27 over Willow Swamp 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 March 2025.
How much traffic does S-15-27 over Willow Swamp carry?
About 125 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is S-15-27 over Willow Swamp?
The structure is 180 ft (54.9 m) long with a longest span of 30 ft (9.1 m) and a deck 37 ft wide.
Who owns S-15-27 over Willow Swamp?
It is owned by the State Highway Agency.