Gorge
Skagit River·
Whatcom, Washington·
Built 1961·
Concrete·
300 ft tall
Physical Details
| Dam Height | 300 ft (taller than 89.1% in WA) |
| Dam Length | 670 ft |
| Dam Type | Concrete |
| Max Storage | 9.8K acre-ft |
| Normal Storage | 8.5K acre-ft |
| Surface Area | 241 acres |
| Drainage Area | 1,193 sq mi |
| Max Discharge | 145,000 cfs |
| Year Completed | 1961 (65 years old) |
| NID ID | WA00168 |
Safety Information
High Hazard
Loss of human life is likely if the dam fails
Emergency Action Plan: Yes
Last Inspection: August 17, 2022
State Regulated: No
Ownership
City of Seattle
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Gorge?
Gorge is classified as High Hazard. Loss of human life is likely if the dam fails.
Who owns Gorge?
Gorge is owned by City of Seattle (Local Government).
When was Gorge last inspected?
Gorge was last inspected on August 17, 2022.
When was Gorge built?
Gorge was completed in 1961, making it 65 years old.
Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.