Old Route 3a over Smith River
Good Condition100 years old50 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 3.54 Km S Of Bristol |
| Carries | Old Route 3a |
| Crosses | Smith River |
| Coordinates | 43.56787, -71.73162 |
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 | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 45.6 ft (13.9 m) |
| Max Span | 44.0 ft (13.4 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 118.2 sq m |
| Main Spans | 1 |
| Year Built | 1926 (reconstructed 1998) |
Traffic
| Avg Daily Traffic | 50 (2023) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | Corps of Engineers |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | CEPNEDNH3310008 |