Summary
Built in 1953 for irrigation purposes, this Earth dam stands at a height of 37 feet and has a hydraulic height of 31 feet. With a storage capacity of 185 acre-feet, Lyle plays a crucial role in water resource management in the region, providing water for agricultural activities in the area.
Despite its importance, Lyle has been rated as having a poor condition assessment and a low hazard potential. The dam has undergone inspection every 5 years, with the last assessment taking place in August 2018. The spillway type is uncontrolled, with a width of 140 feet. While the risk assessment indicates a moderate risk level, there are no specific risk management measures or emergency action plans in place for Lyle.
As a key component of the water infrastructure in the area, Lyle serves as a reminder of the importance of maintaining and monitoring dams for safety and water resource sustainability. With its location in a scenic and vital watershed, Lyle presents both challenges and opportunities for water resource and climate enthusiasts to advocate for the proper management and maintenance of this essential infrastructure.
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Year Completed |
1953 |
Dam Length |
765 |
Dam Height |
37 |
River Or Stream |
S FORK CRAZY WOMAN |
Primary Dam Type |
Earth |
Surface Area |
12 |
Hydraulic Height |
31 |
Nid Storage |
185 |
Structural Height |
36 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
37 |
Seasonal Comparison
5-Day Hourly Forecast Detail
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.
Lyle
North Fork Powder River