S-27-19 over Knowles Island
GoodJasper County, South Carolina · 7.2MI NE Ridgeland · Structure no. 000000000003907
- Built
- 2010
- 15 years old
- Condition
- Good
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 150 ft
- 5 main spans
- Daily traffic
- 600
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-27-19 over Knowles Island is a prestressed concrete box beam or girders - multiple carrying S-27-19 over Knowles Island in Jasper County, South Carolina. It was built in 2010, so it is 15 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 600 vehicles a day, roughly 5% of them trucks, projected to reach 768 by 2043. The structure is 150 ft (45.7 m) long and 36 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-27-19 over Knowles Island built?
It was built in 2010, making it 15 years old in 2025.
What condition is S-27-19 over Knowles Island 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 January 2025.
How much traffic does S-27-19 over Knowles Island carry?
About 600 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S-27-19 over Knowles Island?
The structure is 150 ft (45.7 m) long with a longest span of 30 ft (9.1 m) and a deck 36 ft wide.
Who owns S-27-19 over Knowles Island?
It is owned by the State Highway Agency.