Roslyn Wastewater Lagoon No 3
Roslyn Wastewater Lagoon No 3 is an earth dam located in Kittitas County, Washington, built in 1973. It carries a Low hazard potential classification.
About Roslyn Wastewater Lagoon No 3
Roslyn Wastewater Lagoon No 3 is a dam in Kittitas, Washington. The dam is owned by Roslyn City (local government). It impounds the Crystal Creek-offstream near Cle Elum.
The dam stands 10 feet tall and stretches 2,000 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 59 acre-feet, and collects water from a drainage area of 10 square miles. Completed in 1973, 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.
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Location
| State | Washington |
| County | Kittitas |
| Nearest City | Cle Elum |
| River/Stream | Crystal Creek-offstream |
| Coordinates | 47.20500, -120.96292 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Length | 2,000 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 59 acre-ft |
| Max Storage | 59 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 10 sq mi |
| Max Discharge | 1 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Roslyn City |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA01652 |
| Federal ID | WA01652 |
| More Info | State Dam Safety Program |