I 495 NB over St133 Andover ST
Poor Condition65 years old60,988 vehicles/day
Location
| State | Massachusetts |
| County | Middlesex |
| Location | RT 495 At RT 133 |
| Carries | I 495 NB |
| Crosses | St133 Andover ST |
| Coordinates | 42.64278, -71.23126 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 4 (Poor) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 224.1 ft (68.3 m) |
| Max Span | 108.9 ft (33.2 m) |
| Deck Width | 60.0 ft (18.3 m) |
| Deck Area | 1249.9 sq m |
| Main Spans | 3 |
| Year Built | 1961 |
Traffic
| Avg Daily Traffic | 60,988 (2019) |
| Truck Traffic | 9% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | T030142JUDOTNBI |