S-21-58 over Browns Swamp Appr.
FairFlorence County, South Carolina · 8 MI SE Lake City · Structure no. 000000000008738
- Built
- 1994
- 31 years old
- Condition
- Fair
- inspected October 2023
- Type
- Slab
- Concrete Continuous
- Length
- 90 ft
- 3 main spans
- Daily traffic
- 800
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-21-58 over Browns Swamp Appr. is a concrete continuous slab carrying S-21-58 over Browns Swamp Appr. in Florence County, South Carolina. It was built in 1994, so it is 31 years old, younger 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 800 vehicles a day, roughly 9% of them trucks, projected to reach 1,112 by 2043. The structure is 90 ft (27.4 m) long and 35 ft wide. If it were closed, the detour would be 6.2 mi (10 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 S-21-58 over Browns Swamp Appr. built?
It was built in 1994, making it 31 years old in 2025.
What condition is S-21-58 over Browns Swamp Appr. 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 October 2023.
How much traffic does S-21-58 over Browns Swamp Appr. carry?
About 800 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is S-21-58 over Browns Swamp Appr.?
The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 35 ft wide.
Who owns S-21-58 over Browns Swamp Appr.?
It is owned by the State Highway Agency.