Moses Lake South
Key Takeaway
Moses Lake South is classified as low hazard in Washington. It was completed in 1962 and is 64 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 12 ft (taller than 9.8% in WA) |
| Dam Length | 350 ft |
| Dam Type | Earth |
| Max Storage | 50.0K acre-ft |
| Normal Storage | 50.0K acre-ft |
| Year Completed | 1962 (64 years old) |
| NID ID | WA00128 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
RECLAMATION
Federal Government
Nearby Dams
Moses Lake North Dam
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Low HazardOsullivan
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High Hazard 200 ftP.E.C. Headworks
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Significant Hazard 90 ftPacific Nw Sugar CO Sedimentation Pond
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Low HazardPacific Nw Sugar CO Condensation Pond
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Low HazardRec Silicon Wastewater Pond
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High HazardColumbia Marsh Unit #1 Dam
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Low Hazard 20 ftPort of Moses Lake Lagoon
Grant, WA
Low HazardFrequently Asked Questions
What is the hazard classification of Moses Lake South?
Moses Lake South is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Moses Lake South?
Moses Lake South is owned by RECLAMATION (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Moses Lake South built?
Moses Lake South was completed in 1962, making it 64 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Moses Lake South?
Moses Lake South serves the following purposes: Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Moses Lake South?
Moses Lake South has a dam height of 12 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.