Rohner RD over Twelve Mile Creek
GoodSt. Helena Parish, Louisiana · 1.8 MI W JCT LA 43 & 1045 · Structure no. 624630457904061
- Built
- 1985
- 40 years old
- Condition
- Good
- inspected June 2024
- Type
- Slab
- Concrete
- Length
- 114 ft
- 6 main spans
- Daily traffic
- 350
- 2016 count
- Owner
- County
- County Highway Agency
About this bridge
Rohner RD over Twelve Mile Creek is a concrete slab carrying Rohner RD over Twelve Mile Creek in St. Helena Parish, Louisiana. It was built in 1985, so it is 40 years old, younger than the Louisiana average of 43 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 350 vehicles a day, projected to reach 385 by 2036. The structure is 114 ft (34.7 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 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 Rohner RD over Twelve Mile Creek built?
It was built in 1985, making it 40 years old in 2025.
What condition is Rohner RD over Twelve Mile 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 June 2024.
How much traffic does Rohner RD over Twelve Mile Creek carry?
About 350 vehicles per day (2016 count).
How long is Rohner RD over Twelve Mile Creek?
The structure is 114 ft (34.7 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.
Who owns Rohner RD over Twelve Mile Creek?
It is owned by the County Highway Agency.