LA0490 over Bayou Mayo
FairNatchitoches Parish, Louisiana · 3.67 Mi. SW of LA 1 · Structure no. 083500000080113
- Built
- 1993
- 32 years old
- Condition
- Fair
- inspected April 2024
- Type
- Slab
- Concrete
- Length
- 100 ft
- 5 main spans
- Daily traffic
- 142
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA0490 over Bayou Mayo is a concrete slab carrying LA0490 over Bayou Mayo in Natchitoches Parish, Louisiana. It was built in 1993, so it is 32 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 142 vehicles a day, roughly 10% of them trucks, projected to reach 156 by 2041. The structure is 100 ft (30.5 m) long and 33 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA0490 over Bayou Mayo built?
It was built in 1993, making it 32 years old in 2025.
What condition is LA0490 over Bayou Mayo 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 April 2024.
How much traffic does LA0490 over Bayou Mayo carry?
About 142 vehicles per day (2021 count), of which roughly 10% are trucks.
How long is LA0490 over Bayou Mayo?
The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.
Who owns LA0490 over Bayou Mayo?
It is owned by the State Highway Agency.