S-21-58 over Browns Swamp
GoodFlorence County, South Carolina · 8 MI SE Lake City · Structure no. 000000000008739
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected April 2024
- 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 is a concrete continuous slab carrying S-21-58 over Browns Swamp 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
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
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-21-58 over Browns Swamp built?
It was built in 1994, making it 31 years old in 2025.
What condition is S-21-58 over Browns Swamp in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.
How much traffic does S-21-58 over Browns Swamp carry?
About 800 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is S-21-58 over Browns Swamp?
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?
It is owned by the State Highway Agency.