Upper Snow Dam
Upper Snow Dam is a dam located in Chelan County, Washington, built in 1939. It carries a Low hazard potential classification and has a poor condition assessment.
About Upper Snow Dam
The primary purpose of Upper Snow Dam 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 Us Fish And Wildlife Service (federal). It impounds the Snow Creek.
The dam stands 10 feet tall and stretches 119 feet across, has a maximum storage capacity of 770 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1939, the structure is well-established, with more than 75 years of service.
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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 09/20/2018.
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Location
| State | Washington |
| County | Chelan |
| River/Stream | Snow Creek |
| Coordinates | 47.49778, -120.73194 |
Physical Characteristics
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 119 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 770 acre-ft |
| Max Storage | 770 acre-ft |
| Drainage Area | 4 sq mi |
| Max Discharge | 370 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | US FISH AND WILDLIFE SERVICE |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 09/20/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00643 |
| Federal ID | WA00643 |
| More Info | State Dam Safety Program |