Minckler Dam A Reservoir Report

Last Updated: December 13, 2025

Minckler Dam A, located in Island County, Washington, was completed in 1975 and serves primarily for recreation purposes.


°F

°F

mph

Wind

%

Humidity

Summary

The earth dam, standing at a hydraulic height of 11 feet, impounds an unnamed tributary of Cresent Harbor, creating a surface area of 1.6 acres and a drainage area of 0.04 square miles. With a maximum storage capacity of 14 acre-feet and a normal storage level of 11 acre-feet, the dam poses a high hazard potential but is currently assessed to be in fair condition as of the last inspection in September 2020.

Managed by a private owner, Minckler Dam A falls under the regulatory oversight of the Washington Department of Ecology, ensuring that state permitting, inspection, and enforcement are in place to uphold safety standards. The dam's hazard potential and fair condition highlight the importance of regular monitoring and maintenance to mitigate risks and safeguard the surrounding community and environment. As a crucial part of the local water resource infrastructure, Minckler Dam A plays a vital role in providing recreational opportunities while necessitating ongoing attention to ensure its continued safe operation.

Year Completed

1975

Dam Length

200

River Or Stream

Unnamed Trib- Cresent Harbor

Primary Dam Type

Earth

Surface Area

1.6

Hydraulic Height

11

Drainage Area

0.04

Nid Storage

14

Structural Height

11

Hazard Potential

High

Foundations

Soil

Nid Height

11
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.