RTE 1 over Mamaroneck River
Fair Condition131 years old15,757 vehicles/day
Location
| State | New York |
| County | Westchester |
| Location | Jct US 1 & Mamaroneck Rvr |
| Carries | RTE 1 |
| Crosses | Mamaroneck River |
| Coordinates | 40.94890, -73.73262 |
Condition Ratings
| Overall Condition | Fair |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Masonry |
| Design | Arch - Deck |
| Total Length | 69.9 ft (21.3 m) |
| Max Span | 49.9 ft (15.2 m) |
| Deck Width | 71.5 ft (21.8 m) |
| Deck Area | 464.3 sq m |
| Main Spans | 1 |
| Year Built | 1895 (reconstructed 2024) |
Traffic
| Avg Daily Traffic | 15,757 (2019) |
| Truck Traffic | 1% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 000000001000040 |