I 495 NB over St150
Fair Condition59 years old31,856 vehicles/day
Location
| State | Massachusetts |
| County | Essex |
| Location | At Exit 54 |
| Carries | I 495 NB |
| Crosses | St150 |
| Coordinates | 42.83950, -70.93653 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 123.0 ft (37.5 m) |
| Max Span | 59.1 ft (18 m) |
| Deck Width | 58.1 ft (17.7 m) |
| Deck Area | 663.8 sq m |
| Main Spans | 3 |
| Year Built | 1967 (reconstructed 1993) |
Traffic
| Avg Daily Traffic | 31,856 (2016) |
| Truck Traffic | 10% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 3 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | A070232WADOTNBI |