US321/DEERFIELD RD over Mill Branch
FairJasper County, South Carolina · 1.2MI S of Tillman · Structure no. 000000000000037
- Built
- 1920
- 105 years old, rebuilt 1971
- Condition
- Fair
- inspected November 2023
- Type
- Culvert
- Concrete
- Length
- 34 ft
- 3 main spans
- Daily traffic
- 4,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US321/DEERFIELD RD over Mill Branch is a concrete culvert carrying US321/DEERFIELD RD over Mill Branch in Jasper County, South Carolina. It was built in 1920 and reconstructed in 1971, so it is 105 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 4,300 vehicles a day, roughly 27% of them trucks, projected to reach 7,482 by 2043. The structure is 34 ft (10.4 m) long and 56 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 8 Very Good | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US321/DEERFIELD RD over Mill Branch built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1971.
What condition is US321/DEERFIELD RD over Mill Branch 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 November 2023.
How much traffic does US321/DEERFIELD RD over Mill Branch carry?
About 4,300 vehicles per day (2023 count), of which roughly 27% are trucks.
How long is US321/DEERFIELD RD over Mill Branch?
The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 56 ft wide.
Who owns US321/DEERFIELD RD over Mill Branch?
It is owned by the State Highway Agency.