La0023/john Riley over Drainage Canal
Fair Condition50 years old526 vehicles/day
Location
| State | Louisiana |
| County | Plaquemines |
| Location | 48.3 Mi South Of La 406 |
| Carries | La0023/john Riley |
| Crosses | Drainage Canal |
| Coordinates | 29.36973, -89.57991 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 80.1 ft (24.4 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 222.0 sq m |
| Main Spans | 4 |
| Year Built | 1976 |
Traffic
| Avg Daily Traffic | 526 (2016) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 023800620510334 |