Mill Dam Road over Centerport Harbor
Fair Condition90 years old2,035 vehicles/day
Location
| State | New York |
| County | Suffolk |
| Location | 0.5 Mi N Of Centerport |
| Carries | Mill Dam Road |
| Crosses | Centerport Harbor |
| Coordinates | 40.89292, -73.37288 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 65.9 ft (20.1 m) |
| Max Span | 60.0 ft (18.3 m) |
| Deck Width | 37.1 ft (11.3 m) |
| Deck Area | 227.1 sq m |
| Main Spans | 1 |
| Year Built | 1936 (reconstructed 2004) |
Traffic
| Avg Daily Traffic | 2,035 (2021) |
| Truck Traffic | 1% |
| 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 | 000000003300640 |