I0020 over Walnut Bayou
FairMadison Parish, Louisiana · .01 MI West of West Int O · Structure no. 053304510818122
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected June 2023
- Type
- Slab
- Concrete
- Length
- 175 ft
- 7 main spans
- Daily traffic
- 31,481
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I0020 over Walnut Bayou is a concrete slab carrying I0020 over Walnut Bayou in Madison 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 31,481 vehicles a day, roughly 25% of them trucks, projected to reach 34,629 by 2041. The structure is 175 ft (53.3 m) long and 39 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 I0020 over Walnut Bayou built?
It was built in 1975, making it 50 years old in 2025.
What condition is I0020 over Walnut Bayou 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 I0020 over Walnut Bayou carry?
About 31,481 vehicles per day (2021 count), of which roughly 25% are trucks.
How long is I0020 over Walnut Bayou?
The structure is 175 ft (53.3 m) long with a longest span of 25 ft (7.6 m) and a deck 39 ft wide.
Who owns I0020 over Walnut Bayou?
It is owned by the State Highway Agency.