Rohner RD over Twelve Mile Creek Relief
GoodSt. Helena Parish, Louisiana · 1.8 Miles North of LA 43 · Structure no. 624600000106056
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected April 2024
- Type
- Slab
- Concrete
- Length
- 98 ft
- 5 main spans
- Daily traffic
- 500
- 2009 count
- Owner
- County
- County Highway Agency
About this bridge
Rohner RD over Twelve Mile Creek Relief is a concrete slab carrying Rohner RD over Twelve Mile Creek Relief in St. Helena Parish, Louisiana. It was built in 2009, so it is 16 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 500 vehicles a day, roughly 10% of them trucks, projected to reach 550 by 2029. The structure is 98 ft (29.9 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Rohner RD over Twelve Mile Creek Relief built?
It was built in 2009, making it 16 years old in 2025.
What condition is Rohner RD over Twelve Mile Creek Relief 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 April 2024.
How much traffic does Rohner RD over Twelve Mile Creek Relief carry?
About 500 vehicles per day (2009 count), of which roughly 10% are trucks.
How long is Rohner RD over Twelve Mile Creek Relief?
The structure is 98 ft (29.9 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.
Who owns Rohner RD over Twelve Mile Creek Relief?
It is owned by the County Highway Agency.