Happy Valley
High HazardPoor ConditionEmergency Action Plan: Yes
Location
| State | Oregon |
| County | Wasco |
| Nearest City | none |
| River/Stream | Quartz Creek |
| Coordinates | 44.96390, -121.32350 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 70 ft |
| Dam Height | 46 ft |
| Dam Length | 393 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 490 acre-ft |
| Max Storage | 490 acre-ft |
| Normal Storage | 360 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 13 sq mi |
| Max Discharge | 4,445 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BIA |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 06/14/2022 |
| Emergency Action Plan | Yes |