ST 3 Nb/memorl DR over Water Charles River
Poor Condition70 years old18,750 vehicles/day
Location
| State | Massachusetts |
| County | Middlesex |
| Location | Just S Of Longfellow Br |
| Carries | ST 3 Nb/memorl DR |
| Crosses | Water Charles River |
| Coordinates | 42.36088, -71.07984 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 512.1 ft (156.1 m) |
| Max Span | 60.0 ft (18.3 m) |
| Deck Width | 42.0 ft (12.8 m) |
| Deck Area | 1998.1 sq m |
| Main Spans | 13 |
| Year Built | 1956 |
Traffic
| Avg Daily Traffic | 18,750 (2024) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | C010394DNDOTNBI |