Nh 11 over Mad River
Fair Condition71 years old12,121 vehicles/day
Location
| State | New Hampshire |
| County | Strafford |
| Location | 1.7 Mi New Durham Tl |
| Carries | Nh 11 |
| Crosses | Mad River |
| Coordinates | 43.38691, -71.08172 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 38.1 ft (11.6 m) |
| Max Span | 35.1 ft (10.7 m) |
| Deck Width | 43.3 ft (13.2 m) |
| Deck Area | 153.1 sq m |
| Main Spans | 1 |
| Year Built | 1955 |
Traffic
| Avg Daily Traffic | 12,121 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 008400800012500 |