Summary
This state-owned lake serves as a Fish and Wildlife Pond, with a primary purpose of supporting the local ecosystem. Constructed in 1972, the lake boasts a dam with a height of 15 feet and a storage capacity of 13,000 acre-feet, providing a habitat for various species and offering opportunities for recreational activities.
With a surface area of 2,432 acres and a drainage area of 41.6 square miles, Eyak Lake is a vital resource for the surrounding community and wildlife. The dam, classified as an "Other" type with a buttress core, stands at a hydraulic height of 2.5 feet. Despite being rated as having a low hazard potential, the lake's risk assessment is moderate, highlighting the importance of continued monitoring and management to ensure its long-term sustainability in the face of climate challenges.
Eyak Lake's infrastructure includes an uncontrolled spillway and has not been modified in recent years. While its condition is currently not rated, the lake poses a moderate risk due to its age and the potential for natural events. As water resource and climate enthusiasts, keeping a close eye on Eyak Lake's condition and implementing appropriate risk management measures will be crucial for preserving this valuable ecosystem for future generations.
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15-Day Weather Outlook
Year Completed |
1972 |
Dam Length |
365 |
Dam Height |
2 |
River Or Stream |
EYAK RIVER |
Primary Dam Type |
Other |
Surface Area |
2432 |
Hydraulic Height |
2.5 |
Drainage Area |
41.6 |
Nid Storage |
13000 |
Structural Height |
15 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
15 |
Seasonal Comparison
5-Day Hourly Forecast Detail
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Eyak Lake