S-21-49 over Lynches River Branch
FairFlorence County, South Carolina · 5 MI NW Johnsonville · Structure no. 000000000006491
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected April 2023
- Type
- Slab
- Concrete
- Length
- 120 ft
- 4 main spans
- Daily traffic
- 400
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-21-49 over Lynches River Branch is a concrete slab carrying S-21-49 over Lynches River Branch in Florence County, South Carolina. It was built in 1974, so it is 51 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 400 vehicles a day, roughly 9% of them trucks, projected to reach 584 by 2043. The structure is 120 ft (36.6 m) long and 38 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-21-49 over Lynches River Branch built?
It was built in 1974, making it 51 years old in 2025.
What condition is S-21-49 over Lynches River 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 April 2023.
How much traffic does S-21-49 over Lynches River Branch carry?
About 400 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is S-21-49 over Lynches River Branch?
The structure is 120 ft (36.6 m) long with a longest span of 30 ft (9.1 m) and a deck 38 ft wide.
Who owns S-21-49 over Lynches River Branch?
It is owned by the State Highway Agency.