Delta Drive over I-93 US 4
Poor Condition68 years old612 vehicles/day
Location
| State | New Hampshire |
| County | Merrimack |
| Location | .6 Mi North Of Jct. US 4 |
| Carries | Delta Drive |
| Crosses | I-93 US 4 |
| Coordinates | 43.22369, -71.53454 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 3 (Serious) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 191.9 ft (58.5 m) |
| Max Span | 58.1 ft (17.7 m) |
| Deck Width | 37.1 ft (11.3 m) |
| Deck Area | 661.0 sq m |
| Main Spans | 4 |
| Year Built | 1958 |
Traffic
| Avg Daily Traffic | 612 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 8 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 005201420011600 |