Nh110 over Upper Ammonoosuc River
Fair Condition56 years old1,619 vehicles/day
Location
| State | New Hampshire |
| County | Coos |
| Location | 0.9 Mi From Dummer Tl |
| Carries | Nh110 |
| Crosses | Upper Ammonoosuc River |
| Coordinates | 44.59740, -71.30515 |
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 | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 123.0 ft (37.5 m) |
| Max Span | 118.1 ft (36 m) |
| Deck Width | 46.6 ft (14.2 m) |
| Deck Area | 532.5 sq m |
| Main Spans | 1 |
| Year Built | 1970 |
Traffic
| Avg Daily Traffic | 1,619 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 017000770013300 |