Dry Creek Reservoir Report
Nearby: Taylor No. 1 Peterson
Last Updated: December 14, 2025
Dry Creek, located in Johnson, Wyoming, is a privately owned irrigation dam completed in 1958.
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Summary
Standing at a height of 25 feet with a hydraulic height of 20 feet, the dam serves the primary purpose of irrigation for the surrounding area. With a storage capacity of 296 acre-feet and a surface area of 22 acres, Dry Creek plays a vital role in water resource management in the region.
Despite its importance, Dry Creek is classified as having a low hazard potential but a poor condition assessment. The dam's last inspection in May 2017 revealed the need for maintenance and improvements. The spillway, with a width of 130 feet, is uncontrolled, posing a potential risk in case of overflow. The risk assessment for Dry Creek is moderate, indicating a need for proactive risk management measures to ensure the safety and efficiency of the dam.
As water resource and climate enthusiasts monitor the state of water infrastructure, Dry Creek serves as a reminder of the ongoing challenges in maintaining aging dams for irrigation purposes. With its location in a region susceptible to climate variability, the need for regular inspections, maintenance, and risk management measures for dams like Dry Creek is crucial to ensure the sustainable use of water resources in the area.
Year Completed |
1958 |
Dam Length |
813 |
Dam Height |
25 |
River Or Stream |
DRY CREEK |
Primary Dam Type |
Earth |
Surface Area |
22 |
Hydraulic Height |
20 |
Nid Storage |
296 |
Structural Height |
25 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
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.
Dry Creek