S-4-503 over P & N Rwy
FairAnderson County, South Carolina · Town of Williamston · Structure no. 000000000002653
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected February 2025
- Type
- Slab
- Concrete
- Length
- 90 ft
- 3 main spans
- Daily traffic
- 600
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-4-503 over P & N Rwy is a concrete slab carrying S-4-503 over P & N Rwy in Anderson County, South Carolina. It was built in 1958, so it is 67 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 600 vehicles a day, roughly 5% of them trucks, projected to reach 768 by 2043. The structure is 90 ft (27.4 m) long and 34 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-4-503 over P & N Rwy built?
It was built in 1958, making it 67 years old in 2025.
What condition is S-4-503 over P & N Rwy 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 February 2025.
How much traffic does S-4-503 over P & N Rwy carry?
About 600 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S-4-503 over P & N Rwy?
The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 34 ft wide.
Who owns S-4-503 over P & N Rwy?
It is owned by the State Highway Agency.