Swan Lake
Falls Creek, Carroll Inlet·
Ketchikan Gateway Borough, Alaska·
Built 1984·
Arch·
174 ft tall
Physical Details
| Dam Height | 174 ft (taller than 92.9% in AK) |
| Dam Length | 480 ft |
| Dam Type | Arch |
| Max Storage | 144.8K acre-ft |
| Normal Storage | 144.8K acre-ft |
| Surface Area | 1,567 acres |
| Drainage Area | 37 sq mi |
| Max Discharge | 27,900 cfs |
| Year Completed | 1984 (42 years old) |
| NID ID | AK83013 |
Safety Information
High Hazard
Loss of human life is likely if the dam fails
Emergency Action Plan: Yes
Last Inspection: September 30, 2020
State Regulated: No
Ownership
South East Alaska Power Agency
Public Utility
Frequently Asked Questions
What is the hazard classification of Swan Lake?
Swan Lake is classified as High Hazard. Loss of human life is likely if the dam fails.
Who owns Swan Lake?
Swan Lake is owned by South East Alaska Power Agency (Public Utility).
When was Swan Lake last inspected?
Swan Lake was last inspected on September 30, 2020.
When was Swan Lake built?
Swan Lake was completed in 1984, making it 42 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.