S-21-591 over Br-Muddy Ck
FairFlorence County, South Carolina · 1 MI S Johnsonville · Structure no. 000000000003658
- Built
- 1961
- 64 years old
- Condition
- Fair
- inspected April 2023
- Type
- Slab
- Concrete
- Length
- 30 ft
- 2 main spans
- Daily traffic
- 500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-21-591 over Br-Muddy Ck is a concrete slab carrying S-21-591 over Br-Muddy Ck in Florence County, South Carolina. It was built in 1961, so it is 64 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 5 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 500 vehicles a day, roughly 5% of them trucks, projected to reach 640 by 2043. The structure is 30 ft (9.1 m) long and 28 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-21-591 over Br-Muddy Ck built?
It was built in 1961, making it 64 years old in 2025.
What condition is S-21-591 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-21-591 over Br-Muddy Ck carry?
About 500 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S-21-591 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 28 ft wide.
Who owns S-21-591 over Br-Muddy Ck?
It is owned by the State Highway Agency.