S-21-1331 over Br-Muddy Ck
FairFlorence County, South Carolina · 0.3MI S Johnsonville · Structure no. 000000000006976
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected April 2023
- Type
- Slab
- Concrete
- Length
- 30 ft
- 2 main spans
- Daily traffic
- 450
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-21-1331 over Br-Muddy Ck is a concrete slab carrying S-21-1331 over Br-Muddy Ck in Florence County, South Carolina. It was built in 1977, so it is 48 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 450 vehicles a day, roughly 5% of them trucks, projected to reach 576 by 2043. The structure is 30 ft (9.1 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 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-21-1331 over Br-Muddy Ck built?
It was built in 1977, making it 48 years old in 2025.
What condition is S-21-1331 over Br-Muddy Ck 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-21-1331 over Br-Muddy Ck carry?
About 450 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S-21-1331 over Br-Muddy Ck?
The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 33 ft wide.
Who owns S-21-1331 over Br-Muddy Ck?
It is owned by the State Highway Agency.