Daddy Long Lake Dam is an earth dam located in Fairfax County, Virginia. It carries a Significant hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 1,100 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 Daddy Long Lake Dam
The primary purpose of Daddy Long Lake Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Beizer, Richard L. (private). It impounds the Nichols Run.
The dam stands 15 feet tall and stretches 1,100 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 53 acre-feet, and collects water from a drainage area of 6 square miles.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.
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Location
| State | Virginia |
| County | Fairfax |
| River/Stream | Nichols Run |
| Coordinates | 39.04640, -77.30220 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 1,100 ft |
Storage & Hydraulics
| NID Storage | 53 acre-ft |
| Max Storage | 53 acre-ft |
| Normal Storage | 26 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 6 sq mi |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Beizer, Richard L. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | VA059110 |
| Federal ID | VA059110 |
| More Info | State Dam Safety Program |