Knowles RD over Black River
Fair Condition119 years old138 vehicles/day
Location
| State | Indiana |
| County | Posey |
| Location | 0.01 Mi N Of Mulkey RD |
| Carries | Knowles RD |
| Crosses | Black River |
| Coordinates | 38.19125, -87.76744 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Truss - Thru |
| Total Length | 65.9 ft (20.1 m) |
| Max Span | 64.6 ft (19.7 m) |
| Deck Width | 15.7 ft (4.8 m) |
| Deck Area | 96.5 sq m |
| Main Spans | 1 |
| Year Built | 1907 |
Traffic
| Avg Daily Traffic | 138 (2022) |
| Truck Traffic | 4% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 6500183 |