Heath Reservoir Reservoir Report
Nearby: Silva Flat Coyote Flat
Last Updated: December 5, 2025
Heath Reservoir, located in Lassen County, California, is a privately owned earth dam structure completed in 1965 for water supply purposes.
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Summary
The reservoir has a capacity of 8,650 acre-feet and is fed by Slate Creek, serving irrigation, recreation, and water supply needs in the region. With a dam height of 45 feet and a hydraulic height of 40 feet, Heath Reservoir offers a surface area of 448 acres within a drainage area of 21.7 square miles.
Managed by the Natural Resources Conservation Service, Heath Reservoir has a low hazard potential and is deemed to be in satisfactory condition as of the last assessment in September 2017. Regular inspections are conducted, with the most recent one taking place in June 2020. The dam structure has not undergone significant modifications since its completion, reflecting its stable design and performance over the years. While the reservoir does not have designated spillways or locks, it remains a vital water resource for the surrounding communities, contributing to water conservation and management efforts in the region.
As a key component of the water infrastructure in the area, Heath Reservoir plays a crucial role in supporting agricultural activities, recreational opportunities, and overall water security. With its strategic location and reliable performance, the reservoir stands as a testament to effective water resource management and sustainable dam operations. Climate and water enthusiasts alike can appreciate the significance of Heath Reservoir in ensuring water availability and resilience in the face of changing environmental conditions, making it a valuable asset for the community and beyond.
Year Completed |
1965 |
Dam Length |
1620 |
Dam Height |
45 |
River Or Stream |
Slate Creek |
Primary Dam Type |
Earth |
Surface Area |
448 |
Hydraulic Height |
40 |
Drainage Area |
21.7 |
Nid Storage |
8650 |
Hazard Potential |
Low |
Nid Height |
45 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Sf Pit R Nr Likely Ca
|
9cfs |
Hat C Nr Hat Creek Ca
|
141cfs |
Pit R Bl Pit No 1 Ph Nr Fall River Mills Ca
|
1200cfs |
Pit R Nr Canby Ca
|
56cfs |
Burney C A Burney Falls Nr Burney Ca
|
168cfs |
Spanish C Ab Blackhawk C At Keddie Ca
|
57cfs |
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.
Heath Reservoir