ST 1 A over HWY Bningtn & Neptune
Fair Condition75 years old33,770 vehicles/day
Location
| State | Massachusetts |
| County | Suffolk |
| Location | 1 Mi N Of Callahan Tun. |
| Carries | ST 1 A |
| Crosses | HWY Bningtn & Neptune |
| Coordinates | 42.38003, -71.02476 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 710.0 ft (216.4 m) |
| Max Span | 80.1 ft (24.4 m) |
| Deck Width | 120.4 ft (36.7 m) |
| Deck Area | 7941.9 sq m |
| Main Spans | 10 |
| Year Built | 1951 (reconstructed 1977) |
Traffic
| Avg Daily Traffic | 33,770 (2018) |
| Truck Traffic | 15% |
| Lanes On Bridge | 6 |
| Lanes Under Bridge | 7 |
Inspection & Ownership
| Last Inspection | 122 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | B1623639WDOTNBI |