Dorchester Road over Grant Brook
Good Condition63 years old636 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 1.3 Mi From Jct RTE 10 |
| Carries | Dorchester Road |
| Crosses | Grant Brook |
| Coordinates | 43.79903, -72.12179 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Frame |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Width | 30.8 ft (9.4 m) |
| Deck Area | 71.4 sq m |
| Main Spans | 1 |
| Year Built | 1963 |
Traffic
| Avg Daily Traffic | 636 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 015701180009500 |