ST 1 A/sb over Other Relief
Fair Condition75 years old43,178 vehicles/day
Location
| State | Massachusetts |
| County | Suffolk |
| Location | .3 Mi NE Of Callahan Tun |
| Carries | ST 1 A/sb |
| Crosses | Other Relief |
| Coordinates | 42.37356, -71.03196 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 237.9 ft (72.5 m) |
| Max Span | 80.1 ft (24.4 m) |
| Deck Width | 45.6 ft (13.9 m) |
| Deck Area | 1007.8 sq m |
| Main Spans | 3 |
| Year Built | 1951 (reconstructed 2005) |
Traffic
| Avg Daily Traffic | 43,178 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | B162353A1DOTNBI |