I0049 over I-49 Bayou Na Bonchasse
FairDe Soto Parish, Louisiana · 2.64 MI N of LA 509 Intg. · Structure no. 041604550720621
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 402 ft
- 8 main spans
- Daily traffic
- 29,022
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I0049 over I-49 Bayou Na Bonchasse is a prestressed concrete continuous stringer/multi-beam or girder carrying I0049 over I-49 Bayou Na Bonchasse in De Soto Parish, Louisiana. It was built in 1986, so it is 39 years old, younger 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 29,022 vehicles a day, roughly 36% of them trucks, projected to reach 31,924 by 2041. The structure is 402 ft (122.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 I0049 over I-49 Bayou Na Bonchasse built?
It was built in 1986, making it 39 years old in 2025.
What condition is I0049 over I-49 Bayou Na Bonchasse 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 I0049 over I-49 Bayou Na Bonchasse carry?
About 29,022 vehicles per day (2021 count), of which roughly 36% are trucks.
How long is I0049 over I-49 Bayou Na Bonchasse?
The structure is 402 ft (122.5 m) long with a longest span of 50 ft (15.2 m) and a deck 43 ft wide.
Who owns I0049 over I-49 Bayou Na Bonchasse?
It is owned by the State Highway Agency.