S-21-111 over Darnex Branch
GoodFlorence County, South Carolina · 3MI S Johnsonville · Structure no. 000000000008839
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected April 2023
- Type
- Slab
- Concrete
- Length
- 34 ft
- 1 main span
- Daily traffic
- 900
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-21-111 over Darnex Branch is a concrete slab carrying S-21-111 over Darnex Branch in Florence County, South Carolina. It was built in 1995, so it is 30 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 900 vehicles a day, roughly 4% of them trucks, projected to reach 1,314 by 2043. The structure is 34 ft (10.4 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-21-111 over Darnex Branch built?
It was built in 1995, making it 30 years old in 2025.
What condition is S-21-111 over Darnex Branch 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 2023.
How much traffic does S-21-111 over Darnex Branch carry?
About 900 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is S-21-111 over Darnex Branch?
The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 37 ft wide.
Who owns S-21-111 over Darnex Branch?
It is owned by the State Highway Agency.