I-89 SB over Contoocook River
Fair Condition67 years old11,574 vehicles/day
Location
| State | New Hampshire |
| County | Merrimack |
| Location | 1.2 Mi N.w. Jct RT 127 |
| Carries | I-89 SB |
| Crosses | Contoocook River |
| Coordinates | 43.21745, -71.72242 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 242.1 ft (73.8 m) |
| Max Span | 89.9 ft (27.4 m) |
| Deck Width | 47.9 ft (14.6 m) |
| Deck Area | 1077.5 sq m |
| Main Spans | 3 |
| Year Built | 1959 (reconstructed 1991) |
Traffic
| Avg Daily Traffic | 11,574 (2023) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 012900920013800 |