Silica Dam is an earth dam located in Hanover County, Virginia. It carries a Undetermined hazard potential classification.
Dam profile
NID height · 28 ft28 ft tall and 2,000 ft long, taller than 62% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Silica Dam
The primary purpose of Silica Dam is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. It impounds the Trib. South Anna River.
The dam stands 28 feet tall and stretches 2,000 feet across, has a maximum storage capacity of 200 acre-feet, and collects water from a drainage area of 0 square miles.
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Location
| State | Virginia |
| County | Hanover |
| River/Stream | Trib. South Anna River |
| Coordinates | 37.76320, -77.70700 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 2,000 ft |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Debris Control |
| Owner Type | Not Listed |
| Hazard Classification | Undetermined |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | VA085087 |
| Federal ID | VA085087 |
| More Info | State Dam Safety Program |