Base Station Road over Black Brook
Fair Condition92 years old1,793 vehicles/day
Location
| State | New Hampshire |
| County | Coos |
| Location | 2.98 Mi NE Jct RTE US 302 |
| Carries | Base Station Road |
| Crosses | Black Brook |
| Coordinates | 44.26560, -71.40769 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Area | 53.3 sq m |
| Main Spans | 1 |
| Year Built | 1934 (reconstructed 1969) |
Traffic
| Avg Daily Traffic | 1,793 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 005550670017900 |