Dorchester Road over Grant Brook
Fair Condition86 years old1,132 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 1.0 Mi Jct Route 10 |
| Carries | Dorchester Road |
| Crosses | Grant Brook |
| Coordinates | 43.80340, -72.14332 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 44.9 ft (13.7 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 28.2 ft (8.6 m) |
| Deck Area | 117.8 sq m |
| Main Spans | 1 |
| Year Built | 1940 (reconstructed 1984) |
Traffic
| Avg Daily Traffic | 1,132 (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 | 015700960010000 |