Blue Lake
Sawmill Creek·
City and Borough of Sitka, Alaska·
Built 1961·
Arch·
294 ft tall
Physical Details
| Dam Height | 294 ft (taller than 97.6% in AK) |
| Dam Length | 288 ft |
| Dam Type | Arch |
| Max Storage | 266.0K acre-ft |
| Normal Storage | 266.0K acre-ft |
| Surface Area | 1,646 acres |
| Drainage Area | 37 sq mi |
| Max Discharge | 14,000 cfs |
| Year Completed | 1961 (65 years old) |
| NID ID | AK00002 |
Safety Information
High Hazard
Loss of human life is likely if the dam fails
Emergency Action Plan: Yes
Last Inspection: August 1, 2022
State Regulated: No
Ownership
City and Borough of Sitka
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Blue Lake?
Blue Lake is classified as High Hazard. Loss of human life is likely if the dam fails.
Who owns Blue Lake?
Blue Lake is owned by City and Borough of Sitka (Local Government).
When was Blue Lake last inspected?
Blue Lake was last inspected on August 1, 2022.
When was Blue Lake built?
Blue Lake 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.