Security Blvd over Little Black Bayou
FairTerrebonne Parish, Louisiana · 0001 Log MI from Int · Structure no. 025529355904491
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected May 2023
- Type
- Slab
- Concrete
- Length
- 76 ft
- 4 main spans
- Daily traffic
- 468
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Security Blvd over Little Black Bayou is a concrete slab carrying Security Blvd over Little Black Bayou in Terrebonne Parish, Louisiana. It was built in 1979, so it is 46 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 468 vehicles a day, projected to reach 514 by 2040. The structure is 76 ft (23.2 m) long and 35 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Security Blvd over Little Black Bayou built?
It was built in 1979, making it 46 years old in 2025.
What condition is Security Blvd over Little Black 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 May 2023.
How much traffic does Security Blvd over Little Black Bayou carry?
About 468 vehicles per day (2020 count).
How long is Security Blvd over Little Black Bayou?
The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.
Who owns Security Blvd over Little Black Bayou?
It is owned by the County Highway Agency.