US 301 over Mill Br
FairClarendon County, South Carolina · 1 MI S of Sardinia · Structure no. 000000000000645
- Built
- 1934
- 91 years old, rebuilt 1963
- Condition
- Fair
- inspected September 2023
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 1,700
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 301 over Mill Br is a concrete culvert carrying US 301 over Mill Br in Clarendon County, South Carolina. It was built in 1934 and reconstructed in 1963, so it is 91 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 1,700 vehicles a day, roughly 10% of them trucks, projected to reach 2,482 by 2043. The structure is 21 ft (6.4 m) long and 46 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 301 over Mill Br built?
It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1963.
What condition is US 301 over Mill Br 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 September 2023.
How much traffic does US 301 over Mill Br carry?
About 1,700 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is US 301 over Mill Br?
The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 46 ft wide.
Who owns US 301 over Mill Br?
It is owned by the State Highway Agency.