US 1 Bridge RD over Water Merrimack River
Poor Condition50 years old12,065 vehicles/day
Location
| State | Massachusetts |
| County | Essex |
| Location | At Merrimac River |
| Carries | US 1 Bridge RD |
| Crosses | Water Merrimack River |
| Coordinates | 42.81592, -70.87285 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 4 (Poor) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Movable - Bascule |
| Total Length | 1223.1 ft (372.8 m) |
| Max Span | 145.0 ft (44.2 m) |
| Deck Width | 82.0 ft (25 m) |
| Deck Area | 9,320 sq m |
| Main Spans | 1 |
| Year Built | 1976 |
Traffic
| Avg Daily Traffic | 12,065 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | N110112TDDOTNBI |