I 93 over HWY Concord ST
Fair Condition68 years old155,000 vehicles/day
Location
| State | Massachusetts |
| County | Middlesex |
| Location | 2.4 Km Nly RT 129 |
| Carries | I 93 |
| Crosses | HWY Concord ST |
| Coordinates | 42.55837, -71.14072 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 147.0 ft (44.8 m) |
| Max Span | 68.9 ft (21 m) |
| Deck Width | 172.2 ft (52.5 m) |
| Deck Area | 2,352 sq m |
| Main Spans | 3 |
| Year Built | 1958 (reconstructed 1974) |
Traffic
| Avg Daily Traffic | 155,000 (2019) |
| Truck Traffic | 10% |
| Lanes On Bridge | 8 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | W380312HWDOTNBI |