Nh120 over Great Brook
Fair Condition96 years old2,653 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 1.0 Mi From Plainfield Tl |
| Carries | Nh120 |
| Crosses | Great Brook |
| Coordinates | 43.58914, -72.22575 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 48.9 ft (14.9 m) |
| Max Span | 44.0 ft (13.4 m) |
| Deck Width | 35.1 ft (10.7 m) |
| Deck Area | 159.4 sq m |
| Main Spans | 1 |
| Year Built | 1930 (reconstructed 2001) |
Traffic
| Avg Daily Traffic | 2,653 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 014401500004400 |