S-21-164 over Cypress Swamp
GoodFlorence County, South Carolina · 4MI S Hyman · Structure no. 000000000008842
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected March 2024
- Type
- Slab
- Concrete Continuous
- Length
- 60 ft
- 2 main spans
- Daily traffic
- 950
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-21-164 over Cypress Swamp is a concrete continuous slab carrying S-21-164 over Cypress Swamp in Florence County, South Carolina. It was built in 1995, so it is 30 years old, younger than the South Carolina average of 48 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 950 vehicles a day, roughly 7% of them trucks, projected to reach 1,387 by 2043. The structure is 60 ft (18.3 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-21-164 over Cypress Swamp built?
It was built in 1995, making it 30 years old in 2025.
What condition is S-21-164 over Cypress Swamp in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.
How much traffic does S-21-164 over Cypress Swamp carry?
About 950 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is S-21-164 over Cypress Swamp?
The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 35 ft wide.
Who owns S-21-164 over Cypress Swamp?
It is owned by the State Highway Agency.