Reston Parkway Phase 2 Swm Facility #2 is an earth dam located in Fairfax County, Virginia. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 500 ft long. 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 Reston Parkway Phase 2 Swm Facility #2
The primary purpose of Reston Parkway Phase 2 Swm Facility #2 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Reston Association (private). It impounds the Tributary to Piney Run.
The dam stands 20 feet tall and stretches 500 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 56 acre-feet, and collects water from a drainage area of 0 square miles.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | Virginia |
| County | Fairfax |
| River/Stream | Tributary to Piney Run |
| Coordinates | 38.98660, -77.33970 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 500 ft |
Storage & Hydraulics
| NID Storage | 56 acre-ft |
| Max Storage | 56 acre-ft |
| Normal Storage | 19 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Reston Association |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | VA059062 |
| Federal ID | VA059062 |
| More Info | State Dam Safety Program |