Tolt River - South Fork
High HazardFair ConditionEmergency Action Plan: Yes
Location
| State | Washington |
| County | King |
| Nearest City | Carnation |
| River/Stream | South Fork Tolt River |
| Coordinates | 47.69300, -121.68870 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 200 ft |
| Dam Height | 200 ft |
| Dam Length | 980 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 68,400 acre-ft |
| Max Storage | 68,400 acre-ft |
| Normal Storage | 57,500 acre-ft |
| Surface Area | 1,040 acres |
| Drainage Area | 18 sq mi |
| Max Discharge | 13,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Seattle |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 09/28/2022 |
| Emergency Action Plan | Yes |