I0055 over I 55 South on Ramp Ruddc
FairSt. John the Baptist Parish, Louisiana · 0.1 M W of US 51 · Structure no. 624804520107856
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 590 ft
- 7 main spans
- Daily traffic
- 8,115
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I0055 over I 55 South on Ramp Ruddc is a prestressed concrete stringer/multi-beam or girder carrying I0055 over I 55 South on Ramp Ruddc in St. John the Baptist Parish, Louisiana. It was built in 1975, so it is 50 years old, older than the Louisiana average of 43 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 8,115 vehicles a day, roughly 25% of them trucks, projected to reach 8,926 by 2041. The structure is 590 ft (179.8 m) long and 29 ft wide. If it were closed, the detour would be 98.8 mi (159 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 I0055 over I 55 South on Ramp Ruddc built?
It was built in 1975, making it 50 years old in 2025.
What condition is I0055 over I 55 South on Ramp Ruddc in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.
How much traffic does I0055 over I 55 South on Ramp Ruddc carry?
About 8,115 vehicles per day (2021 count), of which roughly 25% are trucks.
How long is I0055 over I 55 South on Ramp Ruddc?
The structure is 590 ft (179.8 m) long with a longest span of 70 ft (21.3 m) and a deck 29 ft wide.
Who owns I0055 over I 55 South on Ramp Ruddc?
It is owned by the State Highway Agency.