I 495 SB over HWY W Main ST
Poor Condition60 years old38,043 vehicles/day
Location
| State | Massachusetts |
| County | Middlesex |
| Location | Mm 54.6 |
| Carries | I 495 SB |
| Crosses | HWY W Main ST |
| Coordinates | 42.21391, -71.54651 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 3 (Serious) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 132.9 ft (40.5 m) |
| Max Span | 65.9 ft (20.1 m) |
| Deck Width | 62.0 ft (18.9 m) |
| Deck Area | 765.5 sq m |
| Main Spans | 2 |
| Year Built | 1966 |
Traffic
| Avg Daily Traffic | 38,043 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 5 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 6 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | H230111URDOTNBI |