I 93 NB over I 93 SB Bt 57 - 61
Fair Condition56 years old75,910 vehicles/day
Location
| State | Massachusetts |
| County | Suffolk |
| Location | .5 Mi N Of Jct I93&us1 |
| Carries | I 93 NB |
| Crosses | I 93 SB Bt 57 - 61 |
| Coordinates | 42.37879, -71.07608 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Girder and Floorbeam |
| Total Length | 333.0 ft (101.5 m) |
| Max Span | 82.0 ft (25 m) |
| Deck Width | 68.9 ft (21 m) |
| Deck Area | 2131.5 sq m |
| Main Spans | 4 |
| Year Built | 1970 |
Traffic
| Avg Daily Traffic | 75,910 (2023) |
| Truck Traffic | 8% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 3 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | B162813BPDOTNBI |