S-34-320 over Mill Creek Branch
FairMarion County, South Carolina · 2MI E Mullins · Structure no. 000000000005350
- Built
- 1968
- 57 years old, rebuilt 2020
- Condition
- Fair
- inspected June 2024
- Type
- Slab
- Concrete
- Length
- 45 ft
- 3 main spans
- Daily traffic
- 150
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-34-320 over Mill Creek Branch is a concrete slab carrying S-34-320 over Mill Creek Branch in Marion County, South Carolina. It was built in 1968 and reconstructed in 2020, so it is 57 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 150 vehicles a day, roughly 5% of them trucks, projected to reach 192 by 2043. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-34-320 over Mill Creek Branch built?
It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2020.
What condition is S-34-320 over Mill Creek 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 June 2024.
How much traffic does S-34-320 over Mill Creek Branch carry?
About 150 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S-34-320 over Mill Creek Branch?
The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.
Who owns S-34-320 over Mill Creek Branch?
It is owned by the State Highway Agency.