Black Rock Creek Reservoir Report

Last Updated: December 8, 2025

Black Rock Creek, also known as White Rock Lake, is a privately owned water resource located in Carmel Valley Village, Monterey, California.


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Summary

The dam, completed in 1925, stands at a height of 54 feet and serves primarily for water supply purposes. With a storage capacity of 30 acre-feet and a drainage area of 3.35 square miles, Black Rock Creek provides vital water resources for the surrounding area.

Managed by the California Department of Water Resources (DWR), Black Rock Creek is regulated, inspected, and enforced to ensure its safety and functionality. Despite its low hazard potential and satisfactory condition assessment, the dam is subject to regular inspections, with the latest conducted in March 2020. The surrounding area offers opportunities for recreation alongside its water supply functions, making it a valuable asset for both residents and visitors to enjoy.

Represented by Congressman Jimmy Panetta, Black Rock Creek showcases the importance of sustainable water resource management in the face of climate change challenges. With its earth-type dam structure and historical significance, Black Rock Creek stands as a testament to the resilience and adaptability of water infrastructure in meeting the evolving needs of communities in California.

Year Completed

1925

Dam Length

150

Dam Height

54

River Or Stream

Nfk Black Rock Cr

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

48.7

Drainage Area

3.35

Nid Storage

30

Hazard Potential

Low

Nid Height

54
       
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.