Foreman Reservoir Report
Nearby: Taylor Lower Taylor Upper
Last Updated: December 23, 2025
Foreman is a privately owned dam located in Grand View, Idaho, along Castle Creek and the Snake River.
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Summary
Built in 1929, this earth dam stands at a height of 20.7 feet and has a normal storage capacity of 200 acre-feet. With a surface area of 32 acres and a drainage area of 2.1 square miles, Foreman plays a critical role in water resource management in the region.
Despite its historical significance, Foreman is facing challenges in terms of its condition assessment, rated as poor, and its hazard potential, deemed significant. The dam's last inspection in September 2017 highlighted these concerns, prompting a moderate risk assessment with a risk level of 3. With a spillway width of 24 feet and a maximum discharge of 6 cubic feet per second, it is crucial for stakeholders to address the dam's maintenance and risk management measures to ensure the safety and sustainability of the surrounding communities and ecosystems.
As a key infrastructure in the Sacramento District, Foreman serves as a focal point for water resource and climate enthusiasts interested in the intersection of dam safety, environmental protection, and sustainable development. With its rich history, critical role in water storage, and current challenges in condition assessment and hazard potential, Foreman offers a compelling case study for the ongoing dialogue on effective water resource management in the face of changing climate conditions.
Year Completed |
1929 |
Dam Length |
1800 |
Dam Height |
20.7 |
River Or Stream |
CASTLE CREEK SNAKE RIVER |
Surface Area |
32 |
Hydraulic Height |
17.5 |
Drainage Area |
2.1 |
Nid Storage |
200 |
Hazard Potential |
Significant |
Foundations |
Rock, Soil |
Nid Height |
21 |
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.
Foreman