County Road 21 over Roeliff Jansen Kl
Fair Condition96 years old566 vehicles/day
Location
| State | New York |
| County | Columbia |
| Location | .5 Mile NW Of N Hillsdale |
| Carries | County Road 21 |
| Crosses | Roeliff Jansen Kl |
| Coordinates | 42.23998, -73.51464 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 44.0 ft (13.4 m) |
| Max Span | 39.7 ft (12.1 m) |
| Deck Width | 28.9 ft (8.8 m) |
| Deck Area | 117.9 sq m |
| Main Spans | 1 |
| Year Built | 1930 |
Traffic
| Avg Daily Traffic | 566 (2017) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000003342480 |