Grigg Lake Dam is an earth dam located in Powhatan County, Virginia. It carries a Undetermined hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall. 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 Grigg Lake Dam
The primary purpose of Grigg Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Va Department of Corrections - Poor Creek Facility (state). It impounds the Mohawk Creek.
The dam stands 21 feet tall, has a maximum storage capacity of 321 acre-feet, and collects water from a drainage area of 5 square miles.
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Location
| State | Virginia |
| County | Powhatan |
| River/Stream | Mohawk Creek |
| Coordinates | 37.66500, -77.90010 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
Storage & Hydraulics
| NID Storage | 321 acre-ft |
| Max Storage | 321 acre-ft |
| Drainage Area | 5 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Va Department of Corrections - Poor Creek Facility |
| Owner Type | State |
| Hazard Classification | Undetermined |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | VA145012 |
| Federal ID | VA145012 |
| More Info | State Dam Safety Program |