Wells
High HazardPoor ConditionEmergency Action Plan: Yes
Location
| State | Washington |
| County | Chelan |
| Nearest City | Chelan Falls |
| River/Stream | Columbia River |
| Coordinates | 47.94830, -119.87830 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 160 ft |
| Dam Height | 160 ft |
| Dam Length | 4,300 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 500,000 acre-ft |
| Max Storage | 500,000 acre-ft |
| Normal Storage | 331,000 acre-ft |
| Surface Area | 9,700 acres |
| Drainage Area | 85,300 sq mi |
| Max Discharge | 1,180,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | PUD #1 of Douglas County |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 09/16/2025 |
| Emergency Action Plan | Yes |