S-12-397 over Shannon Creek
GoodChester County, South Carolina · 8.6 MI S Chester · Structure no. 000000000003220
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 100 ft
- 2 main spans
- Daily traffic
- 125
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-12-397 over Shannon Creek is a prestressed concrete box beam or girders - multiple carrying S-12-397 over Shannon Creek in Chester County, South Carolina. It was built in 2009, so it is 16 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 125 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2043. The structure is 100 ft (30.5 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-12-397 over Shannon Creek built?
It was built in 2009, making it 16 years old in 2025.
What condition is S-12-397 over Shannon Creek 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-12-397 over Shannon Creek carry?
About 125 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S-12-397 over Shannon Creek?
The structure is 100 ft (30.5 m) long with a longest span of 70 ft (21.3 m) and a deck 36 ft wide.
Who owns S-12-397 over Shannon Creek?
It is owned by the State Highway Agency.