Dummyline RD over Black River
Good Condition36 years old1,563 vehicles/day
Location
| State | Louisiana |
| County | St. Tammany |
| Location | 1.54 M W Of La 1077 |
| Carries | Dummyline RD |
| Crosses | Black River |
| Coordinates | 30.43207, -90.18131 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Culvert |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Width | 55.1 ft (16.8 m) |
| Deck Area | 122.6 sq m |
| Main Spans | 2 |
| Year Built | 1990 |
Traffic
| Avg Daily Traffic | 1,563 (2017) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 625230259901071 |