Lake Irwin RD over Irwin Lake
Poor Condition48 years old150 vehicles/day
Location
| State | Louisiana |
| County | Morehouse |
| Location | 3.2 Mi. NE Int. 505 |
| Carries | Lake Irwin RD |
| Crosses | Irwin Lake |
| Coordinates | 32.55634, -91.84111 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 1 (Imminent Failure) |
| Channel/Waterway | 4 (Poor) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 382.9 ft (116.7 m) |
| Max Span | 57.1 ft (17.4 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 851.9 sq m |
| Main Spans | 16 |
| Year Built | 1978 |
Traffic
| Avg Daily Traffic | 150 (1974) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 053432337915031 |