US 321 over Jackson Creek
FairAllendale County, South Carolina · 1.0 MI S of Sycamore · Structure no. 000000000007188
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected May 2024
- Type
- Slab
- Concrete
- Length
- 75 ft
- 5 main spans
- Daily traffic
- 2,100
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 321 over Jackson Creek is a concrete slab carrying US 321 over Jackson Creek in Allendale County, South Carolina. It was built in 1979, so it is 46 years old, younger 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 5 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 2,100 vehicles a day, roughly 21% of them trucks, projected to reach 3,654 by 2043. The structure is 75 ft (22.9 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 321 over Jackson Creek built?
It was built in 1979, making it 46 years old in 2025.
What condition is US 321 over Jackson 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 May 2024.
How much traffic does US 321 over Jackson Creek carry?
About 2,100 vehicles per day (2023 count), of which roughly 21% are trucks.
How long is US 321 over Jackson Creek?
The structure is 75 ft (22.9 m) long with a longest span of 15 ft (4.6 m) and a deck 33 ft wide.
Who owns US 321 over Jackson Creek?
It is owned by the State Highway Agency.