Antrim Road over Monadnock Mill Canal
Poor Condition104 years old2,233 vehicles/day
Location
| State | New Hampshire |
| County | Hillsborough |
| Location | 0.39 Mi Fr Contoocook Va |
| Carries | Antrim Road |
| Crosses | Monadnock Mill Canal |
| Coordinates | 43.00615, -71.92663 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 4 (Poor) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 27.9 ft (8.5 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 83.3 sq m |
| Main Spans | 1 |
| Year Built | 1922 |
Traffic
| Avg Daily Traffic | 2,233 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 16 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 002100950009300 |