Trillium Lake
Low HazardNot Rated ConditionEmergency Action Plan: Not Required
Location
| State | Oregon |
| County | Clackamas |
| Nearest City | WELCHES |
| River/Stream | MUD CREEK |
| Coordinates | 45.26731, -121.74231 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 19 ft |
| Dam Length | 985 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 380 acre-ft |
| Max Storage | 380 acre-ft |
| Normal Storage | 353 acre-ft |
| Surface Area | 65 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 450 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | OREGON DEPARTMENT OF FISH AND WILDLIFE |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 06/12/2019 |
| Emergency Action Plan | Not Required |