US 15 Bus over Kilborn Mill Pond
GoodDarlington County, South Carolina · 1MI NE of Hartsville · Structure no. 000000000000523
- Built
- 1931
- 94 years old, rebuilt 1979
- Condition
- Good
- inspected January 2024
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 8,100
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 15 Bus over Kilborn Mill Pond is a concrete culvert carrying US 15 Bus over Kilborn Mill Pond in Darlington County, South Carolina. It was built in 1931 and reconstructed in 1979, so it is 94 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 8,100 vehicles a day, roughly 7% of them trucks, projected to reach 11,421 by 2043. The structure is 21 ft (6.3 m) long and 90 ft wide.
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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 15 Bus over Kilborn Mill Pond built?
It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1979.
What condition is US 15 Bus over Kilborn Mill Pond 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 January 2024.
How much traffic does US 15 Bus over Kilborn Mill Pond carry?
About 8,100 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is US 15 Bus over Kilborn Mill Pond?
The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 90 ft wide.
Who owns US 15 Bus over Kilborn Mill Pond?
It is owned by the State Highway Agency.