US 21 over Murph Mill Creek
FairCalhoun County, South Carolina · 7MI W of ST Matthews · Structure no. 000000000001011
- Built
- 1940
- 85 years old
- Condition
- Fair
- inspected July 2024
- Type
- Culvert
- Concrete
- Length
- 32 ft
- 3 main spans
- Daily traffic
- 5,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 21 over Murph Mill Creek is a concrete culvert carrying US 21 over Murph Mill Creek in Calhoun County, South Carolina. It was built in 1940, so it is 85 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 5,000 vehicles a day, roughly 6% of them trucks, projected to reach 7,300 by 2043. The structure is 32 ft (9.7 m) long and 44 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Murph Mill Creek built?
It was built in 1940, making it 85 years old in 2025.
What condition is US 21 over Murph Mill 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 July 2024.
How much traffic does US 21 over Murph Mill Creek carry?
About 5,000 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is US 21 over Murph Mill Creek?
The structure is 32 ft (9.7 m) long with a longest span of 10 ft (3 m) and a deck 44 ft wide.
Who owns US 21 over Murph Mill Creek?
It is owned by the State Highway Agency.