S-45-90 over Br-Thorntree Swp
FairWilliamsburg County, South Carolina · Town of Lane · Structure no. 000000000005178
- Built
- 1967
- 58 years old, rebuilt 1997
- Condition
- Fair
- inspected October 2024
- Type
- Slab
- Concrete
- Length
- 30 ft
- 2 main spans
- Daily traffic
- 300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-45-90 over Br-Thorntree Swp is a concrete slab carrying S-45-90 over Br-Thorntree Swp in Williamsburg County, South Carolina. It was built in 1967 and reconstructed in 1997, so it is 58 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 300 vehicles a day, roughly 3% of them trucks, projected to reach 384 by 2043. The structure is 30 ft (9.1 m) long and 28 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-45-90 over Br-Thorntree Swp built?
It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1997.
What condition is S-45-90 over Br-Thorntree Swp 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 October 2024.
How much traffic does S-45-90 over Br-Thorntree Swp carry?
About 300 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is S-45-90 over Br-Thorntree Swp?
The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.
Who owns S-45-90 over Br-Thorntree Swp?
It is owned by the State Highway Agency.