County Road 21 over Grasse River
Good Condition32 years old1,175 vehicles/day
Location
| State | New York |
| County | St. Lawrence |
| Location | .3 Mi NW Of Pyrites |
| Carries | County Road 21 |
| Crosses | Grasse River |
| Coordinates | 44.52339, -75.19273 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 146.0 ft (44.5 m) |
| Max Span | 141.7 ft (43.2 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 436.1 sq m |
| Main Spans | 1 |
| Year Built | 1994 |
Traffic
| Avg Daily Traffic | 1,175 (2019) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000003340620 |