I 495 NB over HWY W Main ST
Poor Condition60 years old48,152 vehicles/day
Location
| State | Massachusetts |
| County | Middlesex |
| Location | 1.1 Mi S Of St-135 |
| Carries | I 495 NB |
| Crosses | HWY W Main ST |
| Coordinates | 42.21443, -71.54577 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 4 (Poor) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 140.1 ft (42.7 m) |
| Max Span | 65.9 ft (20.1 m) |
| Deck Width | 59.4 ft (18.1 m) |
| Deck Area | 772.9 sq m |
| Main Spans | 2 |
| Year Built | 1966 |
Traffic
| Avg Daily Traffic | 48,152 (2022) |
| Truck Traffic | 6% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 5 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | H230111UQDOTNBI |