Kaneohe Dam Reservoir Report
Last Updated: December 19, 2025
Kaneohe Dam, located in Kaneohe, Hawaii, is a critical flood risk reduction structure designed by the US Army Corps of Engineers.
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Summary
Completed in 1980, this earth dam stands at a height of 83 feet and has a hydraulic height of 77 feet, serving primarily to control the flow of the Kamooalii Stream. With a storage capacity of 4,500 acre-feet and a maximum discharge of 15,000 cubic feet per second, the dam plays a crucial role in managing water resources and protecting the surrounding area from flooding.
The dam's high hazard potential and satisfactory condition assessment highlight the importance of regular inspections and maintenance to ensure its continued effectiveness. With a moderate risk rating and a designated emergency action plan, Kaneohe Dam is well-prepared to respond to potential incidents and safeguard the community in the event of an emergency. Its strategic location in Honolulu County also underscores its significance in the region's water resource management and climate resilience efforts.
As a state-regulated structure under the jurisdiction of the Department of Land and Natural Resources, Kaneohe Dam showcases the collaborative efforts between local government agencies and the community to mitigate flood risks and ensure the safety and stability of water resources in the area. Its impressive design, construction, and operational features make it a key asset in Hawaii's infrastructure landscape, serving as a testament to the importance of proactive water resource management in the face of climate challenges.
Year Completed |
1980 |
Dam Length |
2200 |
Dam Height |
83 |
River Or Stream |
KAMOOALII STREAM |
Primary Dam Type |
Earth |
Surface Area |
32 |
Hydraulic Height |
77 |
Drainage Area |
2.45 |
Nid Storage |
4500 |
Structural Height |
82 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
83 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Haiku Str Nr Heeia
|
2cfs |
Moanalua Stream Nr Kaneohe
|
1cfs |
Kalihi Str Nr Honolulu
|
6cfs |
Makawao Str Nr Kailua
|
5cfs |
Kahaluu Str Nr Ahuimanu
|
3cfs |
Waihi Stream At Honolulu
|
2cfs |
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.
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