I0049 over Bayou Derbonne
Poor Condition40 years old18,305 vehicles/day
Location
| State | Louisiana |
| County | Natchitoches |
| Location | 0.69 Miles North Of La 11 |
| Carries | I0049 |
| Crosses | Bayou Derbonne |
| Coordinates | 31.53590, -92.95523 |
Condition Ratings
| Overall Condition | Poor |
| Channel/Waterway | 5 (Fair) |
| Culvert | 4 (Poor) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Culvert |
| Total Length | 49.9 ft (15.2 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Width | 357.9 ft (109.1 m) |
| Deck Area | 1658.3 sq m |
| Main Spans | 4 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 18,305 (2021) |
| Truck Traffic | 30% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 083504550611101 |