I-89 over South Street
Poor Condition67 years old46,612 vehicles/day
Location
| State | New Hampshire |
| County | Merrimack |
| Location | Bow Interchange |
| Carries | I-89 |
| Crosses | South Street |
| Coordinates | 43.16880, -71.53397 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 4 (Poor) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete |
| Design | Frame |
| Total Length | 55.1 ft (16.8 m) |
| Max Span | 50.9 ft (15.5 m) |
| Deck Width | 101.0 ft (30.8 m) |
| Deck Area | 517.4 sq m |
| Main Spans | 1 |
| Year Built | 1959 |
Traffic
| Avg Daily Traffic | 46,612 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 2 |
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 | 002701320016000 |