Nh 12 over Mill Brook
Fair Condition78 years old6,478 vehicles/day
Location
| State | New Hampshire |
| County | Cheshire |
| Location | 2.5 Mi To Walpole Tl |
| Carries | Nh 12 |
| Crosses | Mill Brook |
| Coordinates | 42.99005, -72.42878 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 7 (Good) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 29.9 ft (9.1 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Area | 89.2 sq m |
| Main Spans | 1 |
| Year Built | 1948 |
Traffic
| Avg Daily Traffic | 6,478 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 027201250012200 |