RTE 970b over Grasse River
Good Condition109 years old7,291 vehicles/day
Location
| State | New York |
| County | St. Lawrence |
| Location | 0.8 Miles North Of Jct. O |
| Carries | RTE 970b |
| Crosses | Grasse River |
| Coordinates | 44.93339, -74.89303 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Arch - Deck |
| Total Length | 346.1 ft (105.5 m) |
| Max Span | 86.0 ft (26.2 m) |
| Deck Width | 45.9 ft (14 m) |
| Deck Area | 1,477 sq m |
| Main Spans | 4 |
| Year Built | 1917 (reconstructed 2004) |
Traffic
| Avg Daily Traffic | 7,291 (2021) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 000000001048270 |