Maui Field 290 Reservoir Reservoir Report
Nearby: Puu Koa Reservoir Olinda Reservoir
Last Updated: December 19, 2025
Maui Field 290 Reservoir, located in Pukalani, Maui, Hawaii, is a private irrigation reservoir completed in 1997 with a storage capacity of 13.2 acre-feet.
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Summary
Managed by the Hawaii Department of Land and Natural Resources, this earth dam structure stands at 25 feet in height and spans 300 feet in length. The reservoir serves primarily for irrigation purposes and is regulated, inspected, and enforced by the state authorities to ensure its safety and compliance with regulations.
Despite being classified as having a high hazard potential, the condition assessment of Maui Field 290 Reservoir is rated as fair, with the last inspection conducted in February 2020. The emergency action plan (EAP) for the reservoir was last revised in March 2021, indicating a proactive approach to emergency preparedness and risk management. With a moderate risk rating, the reservoir is equipped with an uncontrolled spillway and has a maximum discharge capacity of 90 cubic feet per second, serving as a vital water resource for the agricultural sector in the region.
The reservoir's location in the beautiful county of Maui, Hawaii, makes it a key water management infrastructure in the area, contributing to the sustainability of agriculture and water resource management in the region. As climate change impacts water availability and distribution patterns, the maintenance and monitoring of reservoirs like Maui Field 290 become increasingly crucial for ensuring water security and resilience in the face of changing climatic conditions.
Year Completed |
1997 |
Dam Length |
300 |
Dam Height |
25 |
Primary Dam Type |
Earth |
Surface Area |
1.3 |
Nid Storage |
13.2 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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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