I-93 SB US 4 Ramp over Nhrr
Fair Condition68 years old6,898 vehicles/day
Location
| State | New Hampshire |
| County | Merrimack |
| Location | 0.1 Mi S. Canterbury T/l |
| Carries | I-93 SB US 4 Ramp |
| Crosses | Nhrr |
| Coordinates | 43.29024, -71.57412 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 127.0 ft (38.7 m) |
| Max Span | 46.9 ft (14.3 m) |
| Deck Width | 36.7 ft (11.2 m) |
| Deck Area | 433.4 sq m |
| Main Spans | 3 |
| Year Built | 1958 (reconstructed 1984) |
Traffic
| Avg Daily Traffic | 6,898 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 005200420012100 |