US 4 Nh 10 over Mascoma River Csx
Good Condition81 years old13,685 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 4.3 Mi Lebanon T.l. |
| Carries | US 4 Nh 10 |
| Crosses | Mascoma River Csx |
| Coordinates | 43.63572, -72.29543 |
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 | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 382.9 ft (116.7 m) |
| Max Span | 149.9 ft (45.7 m) |
| Deck Width | 40.0 ft (12.2 m) |
| Deck Area | 1423.7 sq m |
| Main Spans | 3 |
| Year Built | 1945 (reconstructed 2008) |
Traffic
| Avg Daily Traffic | 13,685 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 521 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 014400770010700 |