River Road over Grant Brook
Fair Condition48 years old347 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 2.6 Mi Fr Hanover Tl |
| Carries | River Road |
| Crosses | Grant Brook |
| Coordinates | 43.80215, -72.18285 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 37.1 ft (11.3 m) |
| Max Span | 35.1 ft (10.7 m) |
| Deck Width | 16.1 ft (4.9 m) |
| Deck Area | 55.4 sq m |
| Main Spans | 1 |
| Year Built | 1978 |
Traffic
| Avg Daily Traffic | 347 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 015700560009900 |