Crystal Lake Reservoir Report
Nearby: Green Bottom Ash Pond Dam O'Bryan Dam
Last Updated: December 12, 2025
Crystal Lake in McLean County, Kentucky, is a privately owned reservoir with a primary purpose of recreation.
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Summary
Built in 1964, this earth dam stands at a height of 20 feet and has a length of 430 feet, creating a storage capacity of 81 acre-feet. The lake covers a surface area of 7.2 acres and is fed by a tributary of the Green River, providing a serene setting for outdoor activities such as fishing, boating, and swimming.
Managed by the Kentucky Division of Water, Crystal Lake is regulated, permitted, inspected, and enforced to ensure its safety and compliance with state guidelines. Despite being classified as having a low hazard potential, the lake's risk assessment is moderate, indicating a need for ongoing monitoring and risk management measures. The last inspection took place in 2005, with an inspection frequency of 5 years, and the condition assessment is currently listed as "Not Rated," suggesting potential room for improvement in maintenance and safety measures.
Located in the city of Delaware, Crystal Lake offers a peaceful retreat for water resource and climate enthusiasts to enjoy nature's beauty while also serving as a vital water source for the surrounding area. With its scenic surroundings and recreational opportunities, Crystal Lake is a valuable asset to the community and a reminder of the importance of responsible water management in the face of changing climate conditions.
Year Completed |
1964 |
Dam Length |
430 |
Dam Height |
20 |
River Or Stream |
TRIB-GREEN RIVER |
Primary Dam Type |
Earth |
Surface Area |
7.2 |
Drainage Area |
0.16 |
Nid Storage |
81 |
Hazard Potential |
Low |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Green River At Lock 2 At Calhoun
|
2760cfs |
South Fork Panther Creek Near Whitesville
|
25cfs |
Big Creek Near Wadesville
|
2cfs |
Tradewater River At Olney
|
30cfs |
Green River At Paradise
|
2210cfs |
Pond River Near Apex
|
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.
Crystal Lake