US 4 Nh 10 over Mascoma River
Good Condition72 years old8,395 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 6.4 Mi From Hanover Tl |
| Carries | US 4 Nh 10 |
| Crosses | Mascoma River |
| Coordinates | 43.64184, -72.25463 |
Condition Ratings
| Overall Condition | Good |
| Deck | 9 (Excellent) |
| Superstructure | 9 (Excellent) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| 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 | 57.4 ft (17.5 m) |
| Deck Area | 351.8 sq m |
| Main Spans | 1 |
| Year Built | 1954 (reconstructed 2019) |
Traffic
| Avg Daily Traffic | 8,395 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 014401200011500 |