Nh 12a over Mill Brook
Good Condition89 years old2,087 vehicles/day
Location
| State | New Hampshire |
| County | Sullivan |
| Location | 2.8 Mi From Claremont Tl |
| Carries | Nh 12a |
| Crosses | Mill Brook |
| Coordinates | 43.46823, -72.38411 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 65.9 ft (20.1 m) |
| Max Span | 57.1 ft (17.4 m) |
| Deck Width | 35.4 ft (10.8 m) |
| Deck Area | 217.1 sq m |
| Main Spans | 1 |
| Year Built | 1937 (reconstructed 1991) |
Traffic
| Avg Daily Traffic | 2,087 (2023) |
| Truck Traffic | 7% |
| 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 | 005500640009800 |