I0020 over Ash Slough
FairRichland Parish, Louisiana · 1.0 MI East of LA 609 · Structure no. 054204510721971
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected October 2023
- Type
- Culvert
- Concrete
- Length
- 38 ft
- 5 main spans
- Daily traffic
- 38,890
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I0020 over Ash Slough is a concrete culvert carrying I0020 over Ash Slough in Richland Parish, Louisiana. It was built in 1970, so it is 55 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 38,890 vehicles a day, roughly 37% of them trucks, projected to reach 42,779 by 2041. The structure is 38 ft (11.6 m) long and 173 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I0020 over Ash Slough built?
It was built in 1970, making it 55 years old in 2025.
What condition is I0020 over Ash Slough 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 October 2023.
How much traffic does I0020 over Ash Slough carry?
About 38,890 vehicles per day (2021 count), of which roughly 37% are trucks.
How long is I0020 over Ash Slough?
The structure is 38 ft (11.6 m) long with a longest span of 7 ft (2.1 m) and a deck 173 ft wide.
Who owns I0020 over Ash Slough?
It is owned by the State Highway Agency.