Lake Demarie Dam
Lake Demarie Dam is a gravity dam located in Aleutians West Census Area, Alaska, built in 1951. It carries a Significant hazard potential classification.
About Lake Demarie Dam
The primary purpose of Lake Demarie 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 19 feet tall and stretches 95 feet across, and has a maximum storage capacity of 2,120 acre-feet. Completed in 1951, the structure is well into its service life at over 50 years old.
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 11/09/2011. That was over 14 years ago.
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Location
| State | Alaska |
| County | Aleutians West Census Area |
| Nearest City | Adak |
| Coordinates | 51.84490, -176.68730 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 19 ft |
| Dam Length | 95 ft |
| Year Completed | 1951 (75 years old) |
Storage & Hydraulics
| NID Storage | 2,120 acre-ft |
| Max Storage | 2,120 acre-ft |
| Normal Storage | 1,611 acre-ft |
| Max Discharge | 5,000 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 | 11/09/2011 |
| Emergency Action Plan | No |
Identifiers
| NID ID | AK00123 |
| Federal ID | AK00123 |
| More Info | State Dam Safety Program |