ST 18 Bedford ST over I 495
Fair Condition68 years old14,214 vehicles/day
Location
| State | Massachusetts |
| County | Plymouth |
| Location | 1 M S Of RTE 44 / 495 |
| Carries | ST 18 Bedford ST |
| Crosses | I 495 |
| Coordinates | 41.89851, -70.95851 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 316.9 ft (96.6 m) |
| Max Span | 108.9 ft (33.2 m) |
| Deck Width | 53.1 ft (16.2 m) |
| Deck Area | 1564.9 sq m |
| Main Spans | 4 |
| Year Built | 1958 (reconstructed 1987) |
Traffic
| Avg Daily Traffic | 14,214 (2024) |
| Truck Traffic | 4% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 6 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | M1805247DDOTNBI |