I-93 NB over Nh 3a
Fair Condition50 years old25,712 vehicles/day
Location
| State | New Hampshire |
| County | Merrimack |
| Location | 1.0 Mi N Manchester Cl |
| Carries | I-93 NB |
| Crosses | Nh 3a |
| Coordinates | 43.04413, -71.46491 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 140.1 ft (42.7 m) |
| Max Span | 133.9 ft (40.8 m) |
| Deck Width | 75.1 ft (22.9 m) |
| Deck Area | 977.8 sq m |
| Main Spans | 1 |
| Year Built | 1976 (reconstructed 2012) |
Traffic
| Avg Daily Traffic | 25,712 (2023) |
| Truck Traffic | 9% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 7 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 012800760007900 |