St110 Merrimack ST over I 495
Fair Condition64 years old15,458 vehicles/day
Location
| State | Massachusetts |
| County | Essex |
| Location | 1 Mi S Of St-213 |
| Carries | St110 Merrimack ST |
| Crosses | I 495 |
| Coordinates | 42.72818, -71.13903 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 354.0 ft (107.9 m) |
| Max Span | 87.9 ft (26.8 m) |
| Deck Width | 62.3 ft (19 m) |
| Deck Area | 2050.1 sq m |
| Main Spans | 5 |
| Year Built | 1962 |
Traffic
| Avg Daily Traffic | 15,458 (2024) |
| Truck Traffic | 4% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 7 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | M170322YFDOTNBI |