Main Street over Mascoma Lake
Good Condition14 years old1,358 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | .13 Mi. From Jct RTE 4-a |
| Carries | Main Street |
| Crosses | Mascoma Lake |
| Coordinates | 43.63227, -72.15672 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 9 (Excellent) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 345.1 ft (105.2 m) |
| Max Span | 129.9 ft (39.6 m) |
| Deck Width | 38.4 ft (11.7 m) |
| Deck Area | 1230.8 sq m |
| Main Spans | 3 |
| Year Built | 2012 |
Traffic
| Avg Daily Traffic | 1,358 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 007700780013900 |