Nh120 over Great Brook
Good Condition82 years old2,671 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 2.2 Mi From Plainfield Tl |
| Carries | Nh120 |
| Crosses | Great Brook |
| Coordinates | 43.61787, -72.22425 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 30.8 ft (9.4 m) |
| Max Span | 27.9 ft (8.5 m) |
| Deck Width | 35.8 ft (10.9 m) |
| Deck Area | 102.5 sq m |
| Main Spans | 1 |
| Year Built | 1944 (reconstructed 1993) |
Traffic
| Avg Daily Traffic | 2,671 (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 | 014401500008400 |