Nh 31 over Souhegan River
Fair Condition75 years old4,552 vehicles/day
Location
| State | New Hampshire |
| County | Hillsborough |
| Location | .3 Mi From Greenville Tl |
| Carries | Nh 31 |
| Crosses | Souhegan River |
| Coordinates | 42.79138, -71.79494 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 59.1 ft (18 m) |
| Max Span | 56.1 ft (17.1 m) |
| Deck Width | 41.0 ft (12.5 m) |
| Deck Area | 225 sq m |
| Main Spans | 1 |
| Year Built | 1951 |
Traffic
| Avg Daily Traffic | 4,552 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 027700770005200 |