Cj Strike Res Nr Grand View Id Reservoir Report

Last Updated: December 13, 2025

CJ Strike Reservoir, located near Grand View, Idaho, was created in 1952 by the construction of a dam on the Snake River.


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Summary

The reservoir has a capacity of 334,000 acre-feet and is used for irrigation, flood control, and recreation. The hydrology of the reservoir is dependent on the snowpack in the surrounding mountains and surface flows from the Snake River. The primary snowpack providers are the Owyhee Mountains to the south and the Sawtooth Mountains to the north. The reservoir is also fed by several tributaries, including the Bruneau River and the South Fork Boise River. Agriculture is the primary use of the water from CJ Strike Reservoir, with crops such as potatoes, sugar beets, and alfalfa being grown in the surrounding area. Recreational activities include boating, fishing, and camping.

Reservoir Details

Gage Height, Ft 24hr Change -0.04%
Percent of Normal 100%
Minimum 53.7 ft
2022-10-04
Maximum 55.1 ft
2023-06-03
Average 55 ft
Dam_Height 115
Hydraulic_Height 105
Drainage_Area 40800
Year_Completed 1952
Nid_Storage 250000
Structural_Height 115
Surface_Area 7500
Outlet_Gates Tainter (radial) - 8
River_Or_Stream Snake River
Dam_Length 3220
Hazard_Potential High
Primary_Dam_Type Earth
Nid_Height 115
       
Seasonal Comparison
Reservoir Storage, Acre-Ft Levels
Gage Height, Ft Levels

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.