US 1 Nb/low Deck over HWY Chelsea Local Stre
Poor Condition76 years old42,492 vehicles/day
Location
| State | Massachusetts |
| County | Suffolk |
| Location | Chel Appr Low |
| Carries | US 1 Nb/low Deck |
| Crosses | HWY Chelsea Local Stre |
| Coordinates | 42.39006, -71.04174 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 7 (Good) |
| Superstructure | 4 (Poor) |
| Substructure | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Girder and Floorbeam |
| Total Length | 2829.1 ft (862.3 m) |
| Max Span | 103.0 ft (31.4 m) |
| Deck Width | 41.7 ft (12.7 m) |
| Deck Area | 10951.2 sq m |
| Main Spans | 30 |
| Year Built | 1950 |
Traffic
| Avg Daily Traffic | 42,492 (2022) |
| Truck Traffic | 7% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | B160174WYDOTNBI |