Abrams Reservoir Report

Last Updated: December 5, 2025

Abrams is a privately owned dam in Coloma, California, built in 1950 for water supply purposes, specifically irrigation and water supply.


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Summary

Situated on Hastings Creek in El Dorado County, this Earth-type dam stands at 37 feet tall with a hydraulic height of 27.5 feet, providing a storage capacity of 110 acre-feet. The dam has a low hazard potential and is in satisfactory condition as per a 2017 assessment.

Managed by the California Department of Water Resources (DWR) under the Safety of Dams program, Abrams is regulated, permitted, inspected, and enforced by the state authorities. It falls under the jurisdiction of the DWR and is subject to regular inspections, with the last one conducted in December 2019. The dam has a spillway type and width unspecified, and no outlet gates, locks, or associated structures, making it a relatively simple yet vital component in the local water resource management system.

Located within the San Francisco District of the US Army Corps of Engineers, Abrams plays a crucial role in maintaining water supply for agricultural and domestic use in the region. Despite its age, the dam continues to serve its primary purpose effectively, highlighting the importance of sustainable water resource management in the face of climate change challenges.

Year Completed

1950

Dam Length

285

Dam Height

37

River Or Stream

Hastings Creek

Primary Dam Type

Earth

Surface Area

9

Hydraulic Height

27.5

Drainage Area

6.4

Nid Storage

110

Hazard Potential

Low

Nid Height

37
       
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.