S-34-29 over Maiden Down Swamp
FairMarion County, South Carolina · 4MI N Mullins · Structure no. 000000000003924
- Built
- 1962
- 63 years old, rebuilt 1991
- Condition
- Fair
- inspected August 2024
- Type
- Slab
- Concrete
- Length
- 90 ft
- 6 main spans
- Daily traffic
- 400
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-34-29 over Maiden Down Swamp is a concrete slab carrying S-34-29 over Maiden Down Swamp in Marion County, South Carolina. It was built in 1962 and reconstructed in 1991, so it is 63 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 2024. The structure is 90 ft (27.4 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 | 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-34-29 over Maiden Down Swamp built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1991.
What condition is S-34-29 over Maiden Down Swamp 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 August 2024.
How much traffic does S-34-29 over Maiden Down Swamp carry?
About 400 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is S-34-29 over Maiden Down Swamp?
The structure is 90 ft (27.4 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.
Who owns S-34-29 over Maiden Down Swamp?
It is owned by the State Highway Agency.