Cold Springs Reservoir #1 Reservoir Report
Nearby: Spaulding Red Rock No. 1
Last Updated: December 5, 2025
Cold Springs Reservoir #1 in Lassen, California, is a privately owned earth dam structure on Cold Spring Creek.
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Summary
This reservoir, with a height of 17.4 feet and a storage capacity of 2815 acre-feet, serves as an essential water resource in the region. The dam has a low hazard potential and is in fair condition as of the last assessment in September 2017.
Managed by the California Department of Water Resources (DWR) under the Safety of Dams program, Cold Springs Reservoir #1 is subject to state regulation, permitting, inspection, and enforcement. The dam's primary purpose and associated structures are not specified, but its location and design indicate a critical role in water storage and management in the area. With a surface area of 640 acres and a length of 300 feet, the reservoir plays a key role in maintaining water supply and flow in the region.
Overall, Cold Springs Reservoir #1 stands as an important infrastructure for water resource management in California. With its low hazard potential and fair condition, the dam continues to support the community by ensuring water storage and proper regulation of Cold Spring Creek. Its significance in the region's water supply network highlights the importance of maintaining and monitoring such structures for the sustainable management of water resources in the face of changing climate conditions.
Dam Length |
300 |
Dam Height |
17.4 |
River Or Stream |
Cold Spring Creek |
Primary Dam Type |
Earth |
Surface Area |
640 |
Hydraulic Height |
12.1 |
Nid Storage |
2815 |
Hazard Potential |
Low |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Sf Pit R Nr Likely Ca
|
9cfs |
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.
Cold Springs Reservoir #1