Haines Canyon Debris Dam Reservoir Report

Last Updated: December 5, 2025

The Haines Canyon Debris Dam, also known as the Haines Canyon Reservoir, is a critical infrastructure owned and operated by the US Army Corps of Engineers in Glendale, California.


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Summary

Completed in 1938, this earth dam stands at a height of 70 feet and serves the primary purpose of debris control and flood risk reduction along the Haines Creek. With a maximum storage capacity of 15 acre-feet, the dam plays a crucial role in protecting the downstream communities of Sunland-Tujunga and Glendale from potential inundation.

A recent risk assessment conducted by USACE in 2009 identified the Haines Canyon Debris Dam as having a moderate risk due to potential internal erosion issues. The dam poses a hazard with high potential consequences for over 16,600 residents and an estimated $190 million in economic impact in case of failure. To mitigate these risks, USACE has implemented various risk management measures, including conducting regular inspections, monitoring dam health, and collaborating with local emergency managers to develop and update emergency action plans. Community engagement efforts and ongoing maintenance work are also part of the proactive approach to ensure the dam's safety and functionality.

Overall, the Haines Canyon Debris Dam serves as a vital protective structure in the region, and the US Army Corps of Engineers is committed to implementing measures to reduce risks and ensure the safety of surrounding communities. Through ongoing monitoring, maintenance, and communication efforts, USACE aims to safeguard the dam and minimize the potential impacts of flood events on the downstream areas.

Year Completed

1938

Dam Length

500

Dam Height

70

River Or Stream

HAINES CREEK

Primary Dam Type

Earth

Surface Area

1

Hydraulic Height

56

Drainage Area

2

Nid Storage

15

Outlet Gates

None - 0

Hazard Potential

High

Nid Height

70
       
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.