Cramer Reservoir Report

Last Updated: December 5, 2025

Cramer is a private water supply dam located in Standish, California, along the Tr Horse Lake river/stream.


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Summary

Built in 1910, this Earth-type dam stands at a height of 13 feet with a hydraulic height of 10.2 feet. It serves the primary purpose of providing water for irrigation and general water supply, with a storage capacity of 3000 acre-feet and a surface area of 500 acres.

Managed by the Natural Resources Conservation Service, Cramer has been regulated, permitted, inspected, and enforced by state agencies, ensuring its safety and compliance with standards. The dam has a low hazard potential and has been assessed to be in satisfactory condition as of September 2017. The last inspection was conducted in September 2020, with a frequency of every 1 year. Located in Lassen County, Cramer plays a crucial role in water resource management in the region.

With its historical significance dating back over a century, Cramer continues to contribute to water supply and irrigation needs in the area. Its location, design, and operational history make it a key asset for water resource and climate enthusiasts interested in sustainable water management practices in California.

Year Completed

1910

Dam Length

800

Dam Height

13

River Or Stream

Tr Horse Lake

Primary Dam Type

Earth

Surface Area

500

Hydraulic Height

10.2

Nid Storage

3000

Hazard Potential

Low

Nid Height

13
       
Seasonal Comparison

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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.