Blackwater Road over Crystal Lake Brook
Fair Condition38 years old550 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 0.8 Mi From Enfield Tl |
| Carries | Blackwater Road |
| Crosses | Crystal Lake Brook |
| Coordinates | 43.64687, -72.09965 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Aluminum/Wrought Iron/Cast Iron |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 21.0 ft (6.4 m) |
| Deck Area | 42.9 sq m |
| Main Spans | 1 |
| Year Built | 1988 (reconstructed 1992) |
Traffic
| Avg Daily Traffic | 550 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 003601000004000 |