Nh 45 over Souhegan River
Fair Condition89 years old2,721 vehicles/day
Location
| State | New Hampshire |
| County | Hillsborough |
| Location | 3.21 Mi. N.of Mason Tl |
| Carries | Nh 45 |
| Crosses | Souhegan River |
| Coordinates | 42.76714, -71.81194 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Frame |
| Total Length | 56.1 ft (17.1 m) |
| Max Span | 46.9 ft (14.3 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 188.1 sq m |
| Main Spans | 1 |
| Year Built | 1937 |
Traffic
| Avg Daily Traffic | 2,721 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 010400710010100 |