Spring Creek No. 1 Reservoir Report
Nearby: Trail No. 1 Buck
Last Updated: December 5, 2025
Spring Creek No.
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Summary
1 is a privately owned irrigation dam located in Platte, Wyoming, specifically in the city of ORIN JCT. Built in 1954, this Earth dam stands at a height of 30 feet, with a hydraulic height of 25 feet, and a length of 640 feet. It has a storage capacity of 170 acre-feet, with a normal storage level of 114 acre-feet, serving the primary purpose of irrigation for the surrounding area. The dam has an uncontrolled spillway with a width of 250 feet, and an outlet gate consisting of a single valve.
Despite being categorized as having a low hazard potential, Spring Creek No. 1 has a moderate risk assessment rating of 3. The dam is regulated by the state of Wyoming, with regular inspections conducted every 5 years. The last inspection took place in June 2019, with a condition assessment of "Not Rated". Although the dam does not currently have an Emergency Action Plan (EAP) in place, it meets state permitting and enforcement requirements, ensuring that it operates safely and efficiently for its intended purpose. Located in an area with a drainage area of 0 square miles, this dam plays a crucial role in providing water resources for irrigation in the region.
Year Completed |
1954 |
Dam Length |
640 |
Dam Height |
30 |
River Or Stream |
SPRING CREEK |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
25 |
Nid Storage |
170 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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.
Spring Creek No. 1