Grassy Gap Branch Fresh Water Impoundment is an earth dam located in Martin County, Kentucky. It carries a High hazard potential classification.
Dam profile
NID height · 42 ft42 ft tall and 250 ft long, taller than 88% 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 Grassy Gap Branch Fresh Water Impoundment
The primary purpose of Grassy Gap Branch Fresh Water Impoundment is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Pinnacle Processing, Inc. (private).
The dam stands 42 feet tall and stretches 250 feet across, and has a maximum storage capacity of 65 acre-feet.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream.
At 42 feet, this dam is taller than 88% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Kentucky dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Kentucky |
| County | Martin |
| Nearest City | Davella |
| Coordinates | 37.72889, -82.62028 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 42 ft |
| Dam Height | 42 ft |
| Dam Length | 250 ft |
Storage & Hydraulics
| NID Storage | 65 acre-ft |
| Max Storage | 65 acre-ft |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Pinnacle Processing, Inc. |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | KY00406 |
| Federal ID | KY00406 |
| More Info | State Dam Safety Program |