Summary
It is regulated by the California Department of Water Resources and is used primarily for irrigation and water supply purposes. The dam is classified as an earth dam with a height of 15 feet and a storage capacity of 250 acre-feet.
The dam sits on the Yankee Jim Sl river and has a significant hazard potential, but its condition was assessed as satisfactory as of September 2017. The last inspection took place in October 2020, with a frequency of once per year. The dam's emergency action plan status and risk assessment information are currently unknown, indicating a potential area for improvement in terms of preparedness for any emergencies that may arise.
Upper Pasture plays a crucial role in water resource management in the region, providing water for agricultural irrigation and other uses. Its location in a high-risk area underscores the importance of regular inspections and maintenance to ensure the safety and reliability of the dam for the community it serves.
Dam Length |
1100 |
Dam Height |
15 |
River Or Stream |
Yankee Jim Sl |
Primary Dam Type |
Earth |
Surface Area |
50 |
Hydraulic Height |
11.5 |
Drainage Area |
5 |
Nid Storage |
250 |
Hazard Potential |
Significant |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Sf Pit R Nr Likely Ca
|
7cfs |
Pit R Nr Canby Ca
|
56cfs |
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.
Upper Pasture