Humboldt Creek Reservoir Dam Reservoir Report
Last Updated: February 1, 2026
Humboldt Creek Reservoir Dam, located in Sand Point, Alaska, is a critical infrastructure owned by the local government and regulated by the Alaska Department of Natural Resources.
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Summary
The dam serves the primary purpose of water supply, with a storage capacity of 55 acre-feet and a normal storage level of 50 acre-feet. This Earth-type dam with a buttress core stands at a height of 19.1 feet and spans a length of 395 feet, impounding the waters of Humboldt Creek.
Despite being rated as "Significant" in terms of hazard potential, the dam's condition assessment is currently listed as "Not Rated." With a moderate risk level of 3, there are no specific risk management measures or emergency action plans documented for this structure. While the last inspection date is unknown, the dam is subject to regular inspections every 3 years to ensure its safety and functionality. As water resource and climate enthusiasts, understanding the intricacies of Humboldt Creek Reservoir Dam provides valuable insight into the management and maintenance of essential water infrastructure in remote regions like the Aleutians East of Alaska.
Dam Length |
395 |
Dam Height |
19.1 |
River Or Stream |
HUMBOLDT CREEK |
Primary Dam Type |
Earth |
Surface Area |
11 |
Nid Storage |
55 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
19 |
Seasonal Comparison
Hourly Weather Forecast
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.
Humboldt Creek Reservoir Dam