Lake Mamie is a concrete dam located in Mono County, California, built in 1968. It carries a Significant hazard potential classification.
Dam profile
NID height · 6 ft6 ft tall and 50 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Lake Mamie
The primary purpose of Lake Mamie 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 Usda Fs (federal). It impounds the Mammoth Creek near Mammoth Lakes.
The dam stands 6 feet tall and stretches 50 feet across. Completed in 1968, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 10/24/2013. That was over 12 years ago.
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Location
| State | California |
| County | Mono |
| Nearest City | Mammoth Lakes |
| River/Stream | Mammoth Creek |
| Coordinates | 37.61085, -119.01041 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 6 ft |
| Dam Height | 6 ft |
| Dam Length | 50 ft |
| Year Completed | 1968 (58 years old) |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Usda Fs |
| Owner Type | Federal |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 10/24/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CA10389 |
| Federal ID | CA10389 |
| More Info | State Dam Safety Program |