Fairchild (Res F) Reservoir Report

Last Updated: December 5, 2025

Fairchild (Res F) is a Federal-owned reservoir located in Modoc, California, with a primary purpose of serving as a Fish and Wildlife Pond.


°F

°F

mph

Wind

%

Humidity

Summary

Built in 1914, this Earth dam stands at a height of 20 feet and has a length of 1500 feet, providing a storage capacity of 2000 acre-feet. With a drainage area of 9.1 square miles and a controlled spillway type, Fairchild (Res F) has a significant hazard potential and a very high risk assessment rating.

Managed by the Forest Service, Fairchild (Res F) is inspected every 5 years, with the last inspection conducted in July 2015. Although the condition assessment is currently not rated, the reservoir is equipped with valve outlet gates and is regulated by the Forest Service. With its location in close proximity to the Sacramento District, Fairchild (Res F) plays a crucial role in supporting fish and wildlife habitat in the area, making it a valuable resource for conservation efforts in the region.

Year Completed

1914

Dam Length

1500

Dam Height

20

Primary Dam Type

Earth

Drainage Area

9.1

Nid Storage

2000

Structural Height

20

Outlet Gates

Valve

Hazard Potential

Significant

Nid Height

20
       
Seasonal Comparison

Weather Forecast

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.