Moses Lake South Dam
Moses Lake South Dam is an earth dam located in Grant County, Washington, built in 1961. It carries a Low hazard potential classification.
About Moses Lake South Dam
The primary purpose of Moses Lake South Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bureau Of Reclamation (federal). It impounds the Crab Creek near Beverly.
The dam stands 20 feet tall and stretches 350 feet across, has a maximum storage capacity of 50,000 acre-feet, and collects water from a drainage area of 2,689 square miles. Completed in 1961, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 05/10/2019.
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Location
| State | Washington |
| County | Grant |
| Nearest City | Beverly |
| River/Stream | Crab Creek |
| Coordinates | 47.08000, -119.33370 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 12 ft |
| Dam Length | 350 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 50,000 acre-ft |
| Max Storage | 50,000 acre-ft |
| Normal Storage | 50,000 acre-ft |
| Drainage Area | 2,689 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BUREAU OF RECLAMATION |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 05/10/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00128 |
| Federal ID | WA00128 |
| More Info | State Dam Safety Program |