La0427 over Bayou Manchac
Poor Condition54 years old11,384 vehicles/day
Location
| State | Louisiana |
| County | Ascension |
| Location | 2.1 Mi W Of La 42 |
| Carries | La0427 |
| Crosses | Bayou Manchac |
| Coordinates | 30.33546, -91.01210 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 113.8 ft (34.7 m) |
| Max Span | 19.0 ft (5.8 m) |
| Deck Width | 35.1 ft (10.7 m) |
| Deck Area | 371.3 sq m |
| Main Spans | 6 |
| Year Built | 1972 |
Traffic
| Avg Daily Traffic | 11,384 (2021) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 124 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 611708172300001 |