HWY Boylston ST over I 495
Poor Condition65 years old10,600 vehicles/day
Location
| State | Massachusetts |
| County | Middlesex |
| Location | 1.3 Km South RT 38 |
| Carries | HWY Boylston ST |
| Crosses | I 495 |
| Coordinates | 42.62143, -71.28271 |
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 | 285.1 ft (86.9 m) |
| Max Span | 74.1 ft (22.6 m) |
| Deck Width | 49.5 ft (15.1 m) |
| Deck Area | 1312.2 sq m |
| Main Spans | 5 |
| Year Built | 1961 |
Traffic
| Avg Daily Traffic | 10,600 (2024) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 6 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | L150852L7DOTNBI |