I-93 NB over Merrimack River Csx RD
Fair Condition50 years old48,395 vehicles/day
Location
| State | New Hampshire |
| County | Hillsborough |
| Location | At Manchester-hooksett Tl |
| Carries | I-93 NB |
| Crosses | Merrimack River Csx RD |
| Coordinates | 43.04094, -71.46058 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 826.1 ft (251.8 m) |
| Max Span | 228.0 ft (69.5 m) |
| Deck Width | 68.6 ft (20.9 m) |
| Deck Area | 5262.6 sq m |
| Main Spans | 4 |
| Year Built | 1976 (reconstructed 2013) |
Traffic
| Avg Daily Traffic | 48,395 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 016100590008700 |