US 1 Sb/l Mystc U over US 1 Nb/lit Mystic Lowr
Fair Condition76 years old41,655 vehicles/day
Location
| State | Massachusetts |
| County | Suffolk |
| Location | L Mystic Up |
| Carries | US 1 Sb/l Mystc U |
| Crosses | US 1 Nb/lit Mystic Lowr |
| Coordinates | 42.38018, -71.05172 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Truss - Thru |
| Total Length | 439.0 ft (133.8 m) |
| Max Span | 439.0 ft (133.8 m) |
| Deck Width | 41.7 ft (12.7 m) |
| Deck Area | 1699.3 sq m |
| Main Spans | 1 |
| Year Built | 1950 |
Traffic
| Avg Daily Traffic | 41,655 (2022) |
| Truck Traffic | 9% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 3 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | B160174WXDOTNBI |