I 495 over HWY Massachusetts AVE
Poor Condition63 years old124,334 vehicles/day
Location
| State | Massachusetts |
| County | Essex |
| Location | .5 Mi S Merrimac River |
| Carries | I 495 |
| Crosses | HWY Massachusetts AVE |
| Coordinates | 42.69766, -71.14208 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 111.9 ft (34.1 m) |
| Max Span | 60.0 ft (18.3 m) |
| Deck Width | 119.1 ft (36.3 m) |
| Deck Area | 1237.8 sq m |
| Main Spans | 3 |
| Year Built | 1963 (reconstructed 1987) |
Traffic
| Avg Daily Traffic | 124,334 (2022) |
| Truck Traffic | 6% |
| Lanes On Bridge | 6 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 124 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | N150152XJDOTNBI |