Minckler Dam B

Minckler Dam B is an earth dam located in Island County, Washington, built in 1975. It carries a High hazard potential classification and has a fair condition assessment.

About Minckler Dam B

The primary purpose of Minckler Dam B is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Minckler, Sherwood & Joan (private). It impounds the Unnamed Trib - Cresent Harbor.

The dam stands 25 feet tall and stretches 500 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 28 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 09/08/2020.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Washington dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyIsland
River/StreamUnnamed Trib - Cresent Harbor
Coordinates48.31901, -122.56260

Physical Characteristics

Dam TypeEarth
NID Height25 ft
Dam Length500 ft
Year Completed1975 (51 years old)

Storage & Hydraulics

NID Storage28 acre-ft
Max Storage28 acre-ft
Normal Storage24 acre-ft
Surface Area3 acres
Drainage Area0 sq mi
Max Discharge9 cfs

Ownership & Safety

PurposeRecreation
OwnerMinckler, Sherwood & Joan
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection09/08/2020
Emergency Action PlanYes

Identifiers

NID IDWA00691
Federal IDWA00691
More InfoState Dam Safety Program

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