US 17 Alt over Blue Horse Creek
FairColleton County, South Carolina · 3.5 MI S of Waltbr · Structure no. 000000000000176
- Built
- 1925
- 100 years old
- Condition
- Fair
- inspected March 2024
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 1,350
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 17 Alt over Blue Horse Creek is a concrete culvert carrying US 17 Alt over Blue Horse Creek in Colleton County, South Carolina. It was built in 1925, so it is 100 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 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 1,350 vehicles a day, roughly 16% of them trucks, projected to reach 1,971 by 2043. The structure is 21 ft (6.4 m) long and 46 ft wide. If it were closed, the detour would be 14.9 mi (24 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 17 Alt over Blue Horse Creek built?
It was built in 1925, making it 100 years old in 2025.
What condition is US 17 Alt over Blue Horse 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 March 2024.
How much traffic does US 17 Alt over Blue Horse Creek carry?
About 1,350 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is US 17 Alt over Blue Horse Creek?
The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 46 ft wide.
Who owns US 17 Alt over Blue Horse Creek?
It is owned by the State Highway Agency.