I0020 over Black Lake Bayou
FairBienville Parish, Louisiana · .01 MI East Webster/Bienv · Structure no. 040704510400002
- Built
- 1960
- 65 years old, rebuilt 1992
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 200 ft
- 5 main spans
- Daily traffic
- 37,514
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I0020 over Black Lake Bayou is a prestressed concrete continuous stringer/multi-beam or girder carrying I0020 over Black Lake Bayou in Bienville Parish, Louisiana. It was built in 1960 and reconstructed in 1992, so it is 65 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 5 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 37,514 vehicles a day, roughly 36% of them trucks, projected to reach 41,265 by 2041. The structure is 200 ft (61 m) long and 43 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I0020 over Black Lake Bayou built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1992.
What condition is I0020 over Black Lake 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 April 2024.
How much traffic does I0020 over Black Lake Bayou carry?
About 37,514 vehicles per day (2021 count), of which roughly 36% are trucks.
How long is I0020 over Black Lake Bayou?
The structure is 200 ft (61 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.
Who owns I0020 over Black Lake Bayou?
It is owned by the State Highway Agency.