I 93 SB over Rr Mbta/bmrr
Fair Condition68 years old87,100 vehicles/day
Location
| State | Massachusetts |
| County | Middlesex |
| Location | 0.4 Mi Nly RT 129 |
| Carries | I 93 SB |
| Crosses | Rr Mbta/bmrr |
| Coordinates | 42.54165, -71.13523 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 91.9 ft (28 m) |
| Max Span | 86.9 ft (26.5 m) |
| Deck Width | 74.1 ft (22.6 m) |
| Deck Area | 632.8 sq m |
| Main Spans | 1 |
| Year Built | 1958 (reconstructed 1972) |
Traffic
| Avg Daily Traffic | 87,100 (2020) |
| Truck Traffic | 10% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | W380282HTDOTNBI |