Murray

Murray is a multi-arch dam located in San Diego County, California, built in 1918. It carries a High hazard potential classification and has a fair condition assessment.

About Murray

The primary purpose of Murray is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of San Diego (local government). It impounds the Chaparral near La Mesa, Ca.

The dam stands 110 feet tall and stretches 870 feet across, creates a reservoir covering 200 acres, has a maximum storage capacity of 4,818 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1918, the structure is over a century old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 11/06/2024.

At 110 feet, this dam is taller than 98% of all dams in the United States.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The California dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateCalifornia
CountySan Diego
Nearest CityLa Mesa, Ca
River/StreamChaparral
Coordinates32.78230, -117.04690

Physical Characteristics

Dam TypeMulti-Arch
NID Height110 ft
Dam Height110 ft
Dam Length870 ft
Year Completed1918 (108 years old)

Storage & Hydraulics

NID Storage4,818 acre-ft
Max Storage4,818 acre-ft
Surface Area200 acres
Drainage Area3 sq mi
Max Discharge2,312 cfs

Ownership & Safety

PurposeWater Supply
OwnerCity of San Diego
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection11/06/2024
Emergency Action PlanYes

Identifiers

NID IDCA00116
Federal IDCA00116
More InfoState Dam Safety Program

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