Higginbotham Reservoir Dam Reservoir Report
Nearby: Isaak Dam No 4 Sims Dam
Last Updated: December 13, 2025
Higginbotham Reservoir Dam, located in Grant County, Washington, was completed in 1947 and serves multiple purposes including irrigation and recreation.
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Summary
The dam, primarily made of earth with a stone core and rock foundation, stands at a hydraulic height of 13 feet and a structural height of 10 feet, creating a reservoir with a normal storage capacity of 145 acre-feet. The dam sits on the Tr-Banks Lake tributary, within the jurisdiction of the Washington Department of Ecology.
With a surface area of 62 acres and a drainage area of 13.75 square miles, Higginbotham Reservoir Dam offers recreational opportunities while also providing vital irrigation water for agricultural activities in the region. Despite its low hazard potential, the dam's condition assessment is currently not rated, highlighting the importance of regular inspections and maintenance to ensure its long-term safety and functionality. As a privately owned structure, the dam is regulated, permitted, inspected, and enforced by state authorities, demonstrating a commitment to responsible water resource management and climate resilience in the area.
The dam's location within Congressional District 04, Washington, under the representation of Dan Newhouse (R), underscores the significance of this infrastructure in the local community. As water resource and climate enthusiasts continue to advocate for sustainable practices and infrastructure resilience, Higginbotham Reservoir Dam serves as a vital asset supporting both human activities and ecosystem health in the region.
Year Completed |
1947 |
Dam Length |
810 |
River Or Stream |
Tr-Banks Lake |
Primary Dam Type |
Earth |
Surface Area |
62 |
Hydraulic Height |
13 |
Drainage Area |
13.75 |
Nid Storage |
145 |
Structural Height |
10 |
Hazard Potential |
Low |
Foundations |
Rock |
Nid Height |
13 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Wilson Creek Below Corbett Draw Near Almira
|
0cfs |
Crab Creek At Irby
|
2cfs |
Chelan River At Chelan
|
770cfs |
Omak Creek Near Omak
|
7cfs |
Okanogan River At Malott
|
10700cfs |
Crab Creek Near Moses Lake
|
28cfs |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Steamboat Rock State Park
|
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Million Dollar North - WDFW
|
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Barker Canyon - WDFW
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Higginbotham Reservoir Dam