Bonnie Rose Lake Dam
Bonnie Rose Lake Dam is a buttress dam located in Aleutians West Census Area, Alaska, built in 1943. It carries a Significant hazard potential classification.
About Bonnie Rose Lake Dam
The primary purpose of Bonnie Rose Lake Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Adak (local government).
The dam stands 15 feet tall and stretches 60 feet across, creates a reservoir covering 120 acres, has a maximum storage capacity of 2,260 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1943, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 11/10/2011. That was over 14 years ago.
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Location
| State | Alaska |
| County | Aleutians West Census Area |
| Nearest City | Adak Naval Base |
| Coordinates | 51.82318, -176.67633 |
Physical Characteristics
| Dam Type | Buttress |
| NID Height | 15 ft |
| Dam Height | 10 ft |
| Dam Length | 60 ft |
| Year Completed | 1943 (83 years old) |
Storage & Hydraulics
| NID Storage | 2,260 acre-ft |
| Max Storage | 2,260 acre-ft |
| Normal Storage | 2,146 acre-ft |
| Surface Area | 120 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF ADAK |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 11/10/2011 |
| Emergency Action Plan | No |
Identifiers
| NID ID | AK00108 |
| Federal ID | AK00108 |
| More Info | State Dam Safety Program |