HWY Dartmouth ST over Tr Comm Rail & Ol
Fair Condition65 years old8,900 vehicles/day
Location
| State | Massachusetts |
| County | Suffolk |
| Location | Span 3-5 Back Bay Sta |
| Carries | HWY Dartmouth ST |
| Crosses | Tr Comm Rail & Ol |
| Coordinates | 42.34770, -71.07617 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 309.7 ft (94.4 m) |
| Max Span | 71.9 ft (21.9 m) |
| Deck Width | 82.3 ft (25.1 m) |
| Deck Area | 2369.4 sq m |
| Main Spans | 3 |
| Year Built | 1961 (reconstructed 1981) |
Traffic
| Avg Daily Traffic | 8,900 (1997) |
| Truck Traffic | 5% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | Other State Agencies |
| Historical Significance | Historical significance is not determined |
| Structure Number | B160854V7MBTNBI |