Nh 3a over Smith River
Fair Condition86 years old2,181 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | Hill Bristol Tl |
| Carries | Nh 3a |
| Crosses | Smith River |
| Coordinates | 43.56911, -71.73499 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 64.0 ft (19.5 m) |
| Max Span | 64.0 ft (19.5 m) |
| Deck Width | 42.0 ft (12.8 m) |
| Deck Area | 249.6 sq m |
| Main Spans | 1 |
| Year Built | 1940 |
Traffic
| Avg Daily Traffic | 2,181 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 003201090003200 |