Spaulding 3 Reservoir Report
Nearby: Hackamore Reservoir Duncan
Last Updated: December 31, 2025
Spaulding 3, located in Modoc, California, is a federal-owned Earth dam completed in 1965 with a primary purpose of serving as a Fish and Wildlife Pond.
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Summary
This structure is managed by the Forest Service and has a height of 9 feet and a length of 1240 feet, providing a storage capacity of 80 acre-feet. With a low hazard potential and a very high risk assessment rating, this dam is classified as not rated in terms of condition assessment.
Despite not being state regulated, Spaulding 3 is inspected every 10 years, with the last inspection conducted in September 2010. The dam features a controlled spillway type with a width of 10 feet and slide gates for outlet control. While the structure's Emergency Action Plan (EAP) status and risk management measures are not specified, its risk assessment ranking suggests a need for strategic monitoring and maintenance to ensure the safety and functionality of this critical water resource infrastructure for fish and wildlife conservation in the region.
Year Completed |
1965 |
Dam Length |
1240 |
Dam Height |
9 |
Primary Dam Type |
Earth |
Drainage Area |
0.8 |
Nid Storage |
80 |
Structural Height |
9 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
Low |
Nid Height |
9 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Cottonwood Flat
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Howards Gulch
|
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Howard's Gulch Campground
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Spaulding 3