St111 Mass AVE over I 495
Poor Condition63 years old4,604 vehicles/day
Location
| State | Massachusetts |
| County | Middlesex |
| Location | Mm 74.6 |
| Carries | St111 Mass AVE |
| Crosses | I 495 |
| Coordinates | 42.48700, -71.54488 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 3 (Serious) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 323.2 ft (98.5 m) |
| Max Span | 95.1 ft (29 m) |
| Deck Width | 56.1 ft (17.1 m) |
| Deck Area | 1684.3 sq m |
| Main Spans | 3 |
| Year Built | 1963 |
Traffic
| Avg Daily Traffic | 4,604 (2022) |
| Truck Traffic | 6% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 8 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 6 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | B1800228LDOTNBI |