I 495 NB over HWY Boston RD
Poor Condition67 years old53,253 vehicles/day
Location
| State | Massachusetts |
| County | Middlesex |
| Location | Exit 83/n Of 110 |
| Carries | I 495 NB |
| Crosses | HWY Boston RD |
| Coordinates | 42.56904, -71.42570 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 4 (Poor) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 127.0 ft (38.7 m) |
| Max Span | 55.1 ft (16.8 m) |
| Deck Width | 57.1 ft (17.4 m) |
| Deck Area | 673.4 sq m |
| Main Spans | 3 |
| Year Built | 1959 |
Traffic
| Avg Daily Traffic | 53,253 (2021) |
| Truck Traffic | 7% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | W2601927UDOTNBI |