US 21 over Middle Pen Branch
FairOrangeburg County, South Carolina · In City of Orangeburg · Structure no. 000000000004869
- Built
- 1966
- 59 years old, rebuilt 1985
- Condition
- Fair
- inspected December 2023
- Type
- Culvert
- Concrete
- Length
- 32 ft
- 3 main spans
- Daily traffic
- 16,900
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 21 over Middle Pen Branch is a concrete culvert carrying US 21 over Middle Pen Branch in Orangeburg County, South Carolina. It was built in 1966 and reconstructed in 1985, so it is 59 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 16,900 vehicles a day, roughly 6% of them trucks, projected to reach 23,829 by 2043. The structure is 32 ft (9.8 m) long and 95 ft wide.
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 21 over Middle Pen Branch built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1985.
What condition is US 21 over Middle Pen 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 December 2023.
How much traffic does US 21 over Middle Pen Branch carry?
About 16,900 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is US 21 over Middle Pen Branch?
The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 95 ft wide.
Who owns US 21 over Middle Pen Branch?
It is owned by the State Highway Agency.