River Road over Clay Brook
Fair Condition141 years old154 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 0.3 Mi. Tl Orford |
| Carries | River Road |
| Crosses | Clay Brook |
| Coordinates | 43.86784, -72.16469 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Wood or Timber |
| Design | Truss - Thru |
| Total Length | 149.0 ft (45.4 m) |
| Max Span | 115.2 ft (35.1 m) |
| Deck Width | 17.1 ft (5.2 m) |
| Deck Area | 236.1 sq m |
| Main Spans | 1 |
| Year Built | 1885 (reconstructed 1970) |
Traffic
| Avg Daily Traffic | 154 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 015700690019000 |