Ek Diversion No. 1 Dam Reservoir Report
Nearby: Ek Addition No. 1 Dam Jack Pot
Last Updated: December 13, 2025
Ek Diversion No.
°F
°F
mph
Wind
%
Humidity
Summary
1 Dam, located in Natrona, Wyoming, is a federally owned structure managed by the Bureau of Land Management. Completed in 1958, this gravity dam on Ek Creek serves primarily for debris control purposes. With a hydraulic height of 22 feet and a structural height of 26 feet, it has a maximum storage capacity of 59.62 acre-feet and a normal storage of 11 acre-feet. Despite its low hazard potential, the dam's condition assessment is currently marked as unsatisfactory.
Although the dam has an uncontrolled spillway type, it has no outlet gates or associated structures. The last inspection in July 2017 revealed a need for improvement, with a moderate risk assessment score of 3. While the dam has not been modified in recent years, it is subject to state regulation, inspection, and enforcement, ensuring its compliance with safety standards. For water resource and climate enthusiasts, Ek Diversion No. 1 Dam presents an interesting case study in managing a modest-sized structure for debris control in a vital waterway.
Year Completed |
1958 |
Dam Length |
1572 |
River Or Stream |
EK CREEK |
Primary Dam Type |
Gravity |
Surface Area |
15 |
Hydraulic Height |
22 |
Nid Storage |
59.62 |
Structural Height |
26 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Ek Diversion No. 1 Dam
E-K Creek
Badwater Creek