US 401 over Rock Bluff Ck (1)
FairSumter County, South Carolina · 4 MI NE of Sumter · Structure no. 000000000002265
- Built
- 1955
- 70 years old
- Condition
- Fair
- inspected May 2024
- Type
- Slab
- Concrete Continuous
- Length
- 120 ft
- 8 main spans
- Daily traffic
- 3,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 401 over Rock Bluff Ck (1) is a concrete continuous slab carrying US 401 over Rock Bluff Ck (1) in Sumter County, South Carolina. It was built in 1955, so it is 70 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 3,500 vehicles a day, roughly 5% of them trucks, projected to reach 4,620 by 2043. The structure is 120 ft (36.6 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 401 over Rock Bluff Ck (1) built?
It was built in 1955, making it 70 years old in 2025.
What condition is US 401 over Rock Bluff Ck (1) 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 May 2024.
How much traffic does US 401 over Rock Bluff Ck (1) carry?
About 3,500 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is US 401 over Rock Bluff Ck (1)?
The structure is 120 ft (36.6 m) long with a longest span of 17 ft (5.2 m) and a deck 34 ft wide.
Who owns US 401 over Rock Bluff Ck (1)?
It is owned by the State Highway Agency.