Grassy Gap Branch Fresh Water Impoundment Reservoir Report
Last Updated: December 5, 2025
Grassy Gap Branch Fresh Water Impoundment, also known as Island Creek Coal-Fresh Water Dam-Grassy Gap, is a private water supply facility located in Davella, Kentucky.
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Summary
With a dam height of 42 feet and a storage capacity of 65 acre-feet, this Earth dam serves as a vital source of fresh water for the surrounding area. Despite being privately owned, the dam is not regulated by the state and does not require permits or inspections.
Managed by the Mine Safety and Health Administration, Grassy Gap Branch Fresh Water Impoundment has a high hazard potential due to its size and location. While the condition assessment is not available, the dam's emergency action plan status and risk management measures are also unknown. With a primary purpose of water supply, this impoundment plays a crucial role in supporting local water needs and maintaining water security in the region.
Located in Martin County, Kentucky, this dam serves as a key infrastructure for water management in the area. With its significant storage capacity and high hazard potential, it is essential for water resource and climate enthusiasts to monitor the condition and safety of Grassy Gap Branch Fresh Water Impoundment to ensure the continued supply of fresh water to the community.
Dam Length |
250 |
Dam Height |
42 |
Primary Dam Type |
Earth |
Nid Storage |
65 |
Hazard Potential |
High |
Nid Height |
42 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Levisa Fork At Paintsville
|
1880cfs |
Tug Fork At Kermit
|
492cfs |
Johns Creek Near Meta
|
21cfs |
Tug Fork At Williamson
|
365cfs |
Levisa Fork At Pikeville
|
1460cfs |
Licking River Below Mason Fork Nr Salyersville
|
41cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Grassy Gap Branch Fresh Water Impoundment