US 3 Nh 11 over Winnisquam Lake
Good Condition53 years old16,322 vehicles/day
Location
| State | New Hampshire |
| County | Belknap |
| Location | Sanbornton-belmont Tl |
| Carries | US 3 Nh 11 |
| Crosses | Winnisquam Lake |
| Coordinates | 43.50212, -71.51170 |
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 Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 474.1 ft (144.5 m) |
| Max Span | 129.9 ft (39.6 m) |
| Deck Width | 53.1 ft (16.2 m) |
| Deck Area | 2340.9 sq m |
| Main Spans | 4 |
| Year Built | 1973 (reconstructed 2006) |
Traffic
| Avg Daily Traffic | 16,322 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 023102310007300 |