Courtright Reservoir Report
Nearby: Courtright Dike Bruce
Last Updated: December 16, 2025
Courtright is a privately owned irrigation dam located in Idaho, specifically in Washington County.
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Summary
Built in 1973 by the USDA NRCS, this earth dam stands at a height of 23.5 feet and has a storage capacity of 90 acre-feet. The dam serves the primary purpose of irrigation and is regulated by the Idaho Department of Water Resources.
The dam is situated on unnamed streams and Hog Creek, with a drainage area of 0.4 square miles. Its spillway type is uncontrolled, with a width of 20 feet. Despite being classified as low hazard potential, the dam's condition assessment as of June 2018 is fair. Regular inspections are conducted every five years to ensure its integrity and safety.
Courtright Dam plays a crucial role in water resource management in the region, providing irrigation water for agricultural purposes. With its moderate risk assessment rating of 3, efforts to maintain and monitor its condition are essential to prevent any potential hazards and ensure the continued availability of water resources for the community.
Year Completed |
1973 |
Dam Length |
500 |
Dam Height |
23.5 |
River Or Stream |
UNNAMED STREAMS HOG CREEK |
Surface Area |
9 |
Hydraulic Height |
20.7 |
Drainage Area |
0.4 |
Nid Storage |
90 |
Hazard Potential |
Low |
Foundations |
Rock, Soil |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Weiser River Nr Cambridge Id
|
172cfs |
Crane Creek At Mouth Nr Weiser Id
|
6cfs |
Weiser River Nr Weiser Id
|
281cfs |
Snake River At Weiser Id
|
10100cfs |
Nf Payette River Nr Banks Id
|
335cfs |
Payette River Nr Payette Id
|
1590cfs |
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.
Courtright