US0080 over Alligator Bayou
PoorPosted for loadBossier Parish, Louisiana · 1.2 MI E of LA782-2 · Structure no. 040800010306051
- Built
- 1955
- 70 years old
- Condition
- Poor
- inspected November 2023
- Type
- Slab
- Concrete
- Length
- 80 ft
- 4 main spans
- Daily traffic
- 15,627
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
US0080 over Alligator Bayou is a concrete slab carrying US0080 over Alligator Bayou in Bossier Parish, Louisiana. It was built in 1955, so it is 70 years old, older than the Louisiana average of 43 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 15,627 vehicles a day, roughly 8% of them trucks, projected to reach 17,189 by 2041. The structure is 80 ft (24.4 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 US0080 over Alligator Bayou built?
It was built in 1955, making it 70 years old in 2025.
What condition is US0080 over Alligator Bayou in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.
How much traffic does US0080 over Alligator Bayou carry?
About 15,627 vehicles per day (2021 count), of which roughly 8% are trucks.
How long is US0080 over Alligator Bayou?
The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.
Who owns US0080 over Alligator Bayou?
It is owned by the State Highway Agency.