Crystal Lake Dam 1084 Reservoir Report
Nearby: Schaefer Dam 1 Dan Jordan Dam
Last Updated: December 7, 2025
Crystal Lake Dam 1084, located in Sioux, Nebraska, is a privately-owned structure designed by the USDA NRCS for irrigation purposes.
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Summary
Completed in 1954, this Earth-type dam stands at a height of 26 feet and has a length of 758 feet. With a storage capacity of 140.4 acre-feet, it primarily serves to irrigate the surrounding area, with a normal storage capacity of 92.6 acre-feet and a drainage area of 0.05 square miles.
Managed by the Nebraska Department of Natural Resources, Crystal Lake Dam 1084 is regulated, permitted, inspected, and enforced by state agencies to ensure its safety and compliance with regulations. Despite being classified as having a low hazard potential, the dam is assessed to be in fair condition as of the last inspection in July 2018. With a history of regular inspections every 5 years, the dam's emergency action plan status and risk management measures are currently unspecified, but efforts are made to ensure the structure's safety and functionality for the community it serves.
Situated on TR-SPRING CREEK, Crystal Lake Dam 1084 is an integral part of the local irrigation infrastructure in the region. With its stone core and soil foundation, the dam provides essential water resources for agricultural purposes while being subject to state oversight and maintenance. As a significant element in water resource management in Nebraska, the dam's contributions to the local ecosystem and economy make it a crucial piece of infrastructure for climate and water resource enthusiasts to study and appreciate.
Year Completed |
1954 |
Dam Length |
758 |
Dam Height |
26 |
River Or Stream |
TR-SPRING CREEK |
Primary Dam Type |
Earth |
Surface Area |
10.7 |
Hydraulic Height |
26 |
Drainage Area |
0.05 |
Nid Storage |
140.4 |
Structural Height |
26 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
Seasonal Comparison
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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 Dam 1084