HWY River ST over Rr Amtrak/mbta
Poor Condition143 years old24,000 vehicles/day
Location
| State | Massachusetts |
| County | Suffolk |
| Location | .8 Km SW Of Mattapan Sq. |
| Carries | HWY River ST |
| Crosses | Rr Amtrak/mbta |
| Coordinates | 42.25567, -71.12526 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 2 (Critical) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Truss - Thru |
| Total Length | 82.0 ft (25 m) |
| Max Span | 76.1 ft (23.2 m) |
| Deck Width | 51.8 ft (15.8 m) |
| Deck Area | 395 sq m |
| Main Spans | 1 |
| Year Built | 1883 (reconstructed 1990) |
Traffic
| Avg Daily Traffic | 24,000 (2019) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 3 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | B161093H8DOT634 |