Greenhill Road over Isinglass River
Fair Condition71 years old2,078 vehicles/day
Location
| State | New Hampshire |
| County | Strafford |
| Location | 3.1 Mi Fr Dover Tl |
| Carries | Greenhill Road |
| Crosses | Isinglass River |
| Coordinates | 43.24620, -71.00378 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 65.9 ft (20.1 m) |
| Max Span | 62.0 ft (18.9 m) |
| Deck Width | 19.7 ft (6 m) |
| Deck Area | 120.6 sq m |
| Main Spans | 1 |
| Year Built | 1955 |
Traffic
| Avg Daily Traffic | 2,078 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 001501090016200 |