ST 1 A/high ST over US 1
Fair Condition92 years old14,930 vehicles/day
Location
| State | Massachusetts |
| County | Essex |
| Location | .4 Mi S Merrimac River |
| Carries | ST 1 A/high ST |
| Crosses | US 1 |
| Coordinates | 42.80982, -70.87699 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Frame |
| Total Length | 65.9 ft (20.1 m) |
| Max Span | 56.8 ft (17.3 m) |
| Deck Width | 70.9 ft (21.6 m) |
| Deck Area | 434.2 sq m |
| Main Spans | 1 |
| Year Built | 1934 |
Traffic
| Avg Daily Traffic | 14,930 (2024) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | N110142TUDOTNBI |