Slickrock Creek Reservoir Report

Last Updated: December 5, 2025

Slickrock Creek is a private water supply dam located in Redding, California, with a significant hazard potential and a satisfactory condition assessment.


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Summary

Built in 2004, this earth dam stands at a height of 155 feet and has a hydraulic height of 146 feet, providing a storage capacity of 231 acre-feet. The dam serves the primary purpose of water supply for the area and is regulated by the California Department of Water Resources (DWR) for safety and enforcement.

The dam on Slickrock Creek spans 440 feet in length and covers a surface area of 7 acres. It is equipped with outlet gates and has undergone regular state inspections, with the last assessment conducted in November 2020. The dam's emergency action plan (EAP) was last revised in December 2020, ensuring preparedness in case of any unforeseen events. With Doug LaMalfa as the congressional representative for the area, Slickrock Creek remains a vital infrastructure for water resource management and climate resilience in Shasta County.

Overall, Slickrock Creek's dam plays a crucial role in water supply operations in the region, meeting state regulations and inspections to ensure its structural integrity and safety. As a key component of the local water infrastructure, the dam's design and construction adhere to standards set by the state regulatory agencies, with ongoing maintenance and monitoring to address any potential risks. With its significant storage capacity and strategic location, Slickrock Creek continues to support the community's water needs while upholding safety protocols and emergency preparedness measures for any contingencies.

Year Completed

2004

Dam Length

440

Dam Height

155

River Or Stream

Slickrock Creek

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

146

Nid Storage

231

Hazard Potential

Significant

Nid Height

155
       
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.