S-16-154 over Deep Hole Swamp
FairPosted for loadDarlington County, South Carolina · 2MI S Lamar · Structure no. 000000000006467
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected February 2025
- Type
- Slab
- Concrete
- Length
- 30 ft
- 2 main spans
- Daily traffic
- 900
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-16-154 over Deep Hole Swamp is a concrete slab carrying S-16-154 over Deep Hole Swamp in Darlington 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 900 vehicles a day, roughly 4% of them trucks, projected to reach 1,314 by 2025. 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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-16-154 over Deep Hole Swamp built?
It was built in 1974, making it 51 years old in 2025.
What condition is S-16-154 over Deep Hole 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 February 2025.
How much traffic does S-16-154 over Deep Hole Swamp carry?
About 900 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is S-16-154 over Deep Hole Swamp?
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-16-154 over Deep Hole Swamp?
It is owned by the State Highway Agency.