HWY Bridge ST over Water Merrimack River
Fair Condition89 years old18,230 vehicles/day
Location
| State | Massachusetts |
| County | Middlesex |
| Location | 0.25 Mi W Falls & RT 110 |
| Carries | HWY Bridge ST |
| Crosses | Water Merrimack River |
| Coordinates | 42.64817, -71.30515 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel Continuous |
| Design | Truss - Thru |
| Total Length | 474.1 ft (144.5 m) |
| Max Span | 196.9 ft (60 m) |
| Deck Width | 70.5 ft (21.5 m) |
| Deck Area | 3106.8 sq m |
| Main Spans | 3 |
| Year Built | 1937 |
Traffic
| Avg Daily Traffic | 18,230 (2024) |
| Truck Traffic | 3% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | L150192FTDOTNBI |