LA1077 over Black Bayou
PoorPosted for loadSt. Tammany Parish, Louisiana · 1.1 M S of LA 22 · Structure no. 625208521300731
- Built
- 1965
- 60 years old
- Condition
- Poor
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 78 ft
- 4 main spans
- Daily traffic
- 1,019
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA1077 over Black Bayou is a wood or timber stringer/multi-beam or girder carrying LA1077 over Black Bayou in St. Tammany Parish, Louisiana. It was built in 1965, so it is 60 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 3 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 1,019 vehicles a day, roughly 13% of them trucks, projected to reach 1,120 by 2041. The structure is 78 ft (23.8 m) long and 22 ft wide.
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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA1077 over Black Bayou built?
It was built in 1965, making it 60 years old in 2025.
What condition is LA1077 over Black 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 February 2024.
How much traffic does LA1077 over Black Bayou carry?
About 1,019 vehicles per day (2021 count), of which roughly 13% are trucks.
How long is LA1077 over Black Bayou?
The structure is 78 ft (23.8 m) long with a longest span of 19 ft (5.8 m) and a deck 22 ft wide.
Who owns LA1077 over Black Bayou?
It is owned by the State Highway Agency.