Summary
This Federal-owned structure stands at 12 feet in height with a storage capacity of 130 acre-feet, serving as a fish and wildlife pond in addition to its main irrigation function. Despite its age, the dam is structurally sound with a low hazard potential, but its condition has been assessed as poor, prompting the need for regular inspections and maintenance.
The dam features an uncontrolled spillway with a width of 20 feet and an outlet gate in the form of a slide (sluice gate), allowing for controlled water release. With a drainage area of 4.5 square miles and a surface area of 52 acres, the reservoir plays a crucial role in managing water resources in the region. Although the risk assessment deems the dam to have a moderate risk level, it remains an essential infrastructure for water supply and conservation efforts in the area, highlighting the importance of ongoing monitoring and management to ensure its continued functionality and safety for the surrounding community and ecosystem.
Year Completed |
1940 |
Dam Length |
2200 |
Dam Height |
12 |
River Or Stream |
SMITH CREEK-OS |
Primary Dam Type |
Earth |
Surface Area |
52 |
Hydraulic Height |
10 |
Drainage Area |
4.5 |
Nid Storage |
130 |
Structural Height |
12 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
12 |
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.
Old Hay Ranch Reservoir Dam