Cossayuna Lake Outlet Dam
Low HazardNot Rated ConditionEmergency Action Plan: Not Required
Location
| County | Washington |
| Nearest City | Cossayuna |
| River/Stream | WHITTAKER BROOK |
| Coordinates | 43.18250, -73.42917 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 200 ft |
| Year Completed | 1815 (211 years old) |
Storage & Hydraulics
| NID Storage | 7,908 acre-ft |
| Max Storage | 7,908 acre-ft |
| Normal Storage | 7,908 acre-ft |
| Surface Area | 659 acres |
| Drainage Area | 11 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Cossayuna Lake Improvement Inc |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 07/20/2010 |
| Emergency Action Plan | Not Required |