Md 66 over Blackrock Creek
Fair Condition58 years old5,291 vehicles/day
Location
| State | Maryland |
| County | Washington |
| Location | 0.27 Mile South Of Is 70 |
| Carries | Md 66 |
| Crosses | Blackrock Creek |
| Coordinates | 39.58259, -77.64254 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 49.9 ft (15.2 m) |
| Max Span | 14.1 ft (4.3 m) |
| Deck Area | 221.9 sq m |
| Year Built | 1968 |
Traffic
| Avg Daily Traffic | 5,291 (2009) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 100000210132020 |