Nh 28 Nh109 over Smith River
Good Condition91 years old8,809 vehicles/day
Location
| State | New Hampshire |
| County | Carroll |
| Location | 3.5 Mi From Alton Tl |
| Carries | Nh 28 Nh109 |
| Crosses | Smith River |
| Coordinates | 43.58943, -71.20555 |
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 | Slab |
| Total Length | 34.4 ft (10.5 m) |
| Max Span | 31.2 ft (9.5 m) |
| Deck Width | 49.2 ft (15 m) |
| Deck Area | 157.5 sq m |
| Main Spans | 1 |
| Year Built | 1935 (reconstructed 2006) |
Traffic
| Avg Daily Traffic | 8,809 (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 | 028301120011000 |