La0509 over Siphorien Bayou
Fair Condition76 years old4,308 vehicles/day
Location
| State | Louisiana |
| County | De Soto |
| Location | 7.29 Mi East Of La 175 |
| Carries | La0509 |
| Crosses | Siphorien Bayou |
| Coordinates | 32.11083, -93.61070 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 26.9 ft (8.2 m) |
| Max Span | 7.9 ft (2.4 m) |
| Deck Width | 109.9 ft (33.5 m) |
| Deck Area | 274.7 sq m |
| Main Spans | 3 |
| Year Built | 1950 |
Traffic
| Avg Daily Traffic | 4,308 (2021) |
| Truck Traffic | 19% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 041601050107291 |