S-12-299 over Mill Creek
GoodChester County, South Carolina · 9MI NW Chester · Structure no. 000000000008988
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 115 ft
- 1 main span
- Daily traffic
- 125
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-12-299 over Mill Creek is a prestressed concrete stringer/multi-beam or girder carrying S-12-299 over Mill Creek in Chester County, South Carolina. It was built in 1996, so it is 29 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 125 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2043. The structure is 115 ft (35 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-12-299 over Mill Creek built?
It was built in 1996, making it 29 years old in 2025.
What condition is S-12-299 over Mill 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 November 2024.
How much traffic does S-12-299 over Mill Creek carry?
About 125 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S-12-299 over Mill Creek?
The structure is 115 ft (35 m) long with a longest span of 49 ft (15 m) and a deck 36 ft wide.
Who owns S-12-299 over Mill Creek?
It is owned by the State Highway Agency.