Glen Martin

Glen Martin is an earth dam located in San Bernardino County, California, built in 1950. It carries a High hazard potential classification and has a fair condition assessment.

About Glen Martin

The primary purpose of Glen Martin 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 Todd M. Richard (private). It impounds the Mountain Home Cr.

The dam stands 55 feet tall and stretches 302 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 33 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.

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. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 04/30/2025.

At 55 feet, this dam is taller than 94% of dams nationwide.

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: No

Location

StateCalifornia
CountySan Bernardino
River/StreamMountain Home Cr
Coordinates34.14210, -116.98690

Physical Characteristics

Dam TypeEarth
NID Height55 ft
Dam Height55 ft
Dam Length302 ft
Year Completed1950 (76 years old)

Storage & Hydraulics

NID Storage33 acre-ft
Max Storage33 acre-ft
Surface Area2 acres
Drainage Area0 sq mi

Ownership & Safety

PurposeWater Supply
OwnerTodd M. Richard
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection04/30/2025
Emergency Action PlanNo

Identifiers

NID IDCA00754
Federal IDCA00754
More InfoState Dam Safety Program

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