I0055 over Manchac Int/Service RD
GoodTangipahoa Parish, Louisiana · 11.0 M S of LA 22 · Structure no. 625304529000582
- Built
- 1979
- 46 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 42,125 ft
- 607 main spans
- Daily traffic
- 17,665
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I0055 over Manchac Int/Service RD is a prestressed concrete stringer/multi-beam or girder carrying I0055 over Manchac Int/Service RD in Tangipahoa Parish, Louisiana. It was built in 1979, so it is 46 years old, older 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 17,665 vehicles a day, roughly 25% of them trucks, projected to reach 19,431 by 2041. The structure is 42,125 ft (12,839.7 m) long and 43 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I0055 over Manchac Int/Service RD built?
It was built in 1979, making it 46 years old in 2025.
What condition is I0055 over Manchac Int/Service RD 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 May 2023.
How much traffic does I0055 over Manchac Int/Service RD carry?
About 17,665 vehicles per day (2021 count), of which roughly 25% are trucks.
How long is I0055 over Manchac Int/Service RD?
The structure is 42,125 ft (12,839.7 m) long with a longest span of 70 ft (21.3 m) and a deck 43 ft wide.
Who owns I0055 over Manchac Int/Service RD?
It is owned by the State Highway Agency.