La1077 over Black Bayou
Poor Condition61 years old1,019 vehicles/day
Location
| State | Louisiana |
| County | St. Tammany |
| Location | 1.1 M S Of La 22 |
| Carries | La1077 |
| Crosses | Black Bayou |
| Coordinates | 30.38659, -90.15810 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 5 (Fair) |
| Substructure | 3 (Serious) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 78.1 ft (23.8 m) |
| Max Span | 19.0 ft (5.8 m) |
| Deck Width | 22.3 ft (6.8 m) |
| Deck Area | 161.8 sq m |
| Main Spans | 4 |
| Year Built | 1965 |
Traffic
| Avg Daily Traffic | 1,019 (2021) |
| Truck Traffic | 13% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 625208521300731 |