Globe Coal Silt Structure Reservoir Report
Last Updated: December 5, 2025
The Globe Coal Silt Structure, located in Defeated Creek, Kentucky, is a privately owned earth dam with a height of 44 feet and a length of 150 feet.
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Summary
Completed in 1972 by the Natural Resources Conservation Service, this structure serves primarily for purposes other than flood control or water supply. It has a storage capacity of 52 acre-feet and is situated on Coon Branch, within the Louisville District of the US Army Corps of Engineers.
With a high hazard potential and moderate risk assessment, the Globe Coal Silt Structure is a key component in managing water resources in Letcher County, Kentucky. While the condition assessment is not available at this time, the structure's uncontrolled spillway and outlet gates are crucial for maintaining water levels and managing potential emergencies. As a vital part of the local water infrastructure, this dam plays a critical role in protecting downstream areas and mitigating flood risks in the region.
Year Completed |
1972 |
Dam Length |
150 |
Dam Height |
44 |
River Or Stream |
Coon Branch |
Primary Dam Type |
Earth |
Drainage Area |
0.58 |
Nid Storage |
52 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
44 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Poor Fork At Cumberland
|
103cfs |
North Fork Kentucky River At Whitesburg
|
25cfs |
Powell River At Big Stone Gap
|
149cfs |
North Fork Kentucky River At Hazard
|
293cfs |
Cutshin Creek At Wooton
|
25cfs |
Cumberland River Near Harlan
|
582cfs |
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.
Globe Coal Silt Structure