Oakland Mills Dam

Oakland Mills Dam is a gravity dam located in Henry County, Iowa, built in 1910. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Oakland Mills Dam

The primary purpose of Oakland Mills Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Henry County Conservation Board (local government). It impounds the Skunk River near Oakland Mills.

The dam stands 10 feet tall and stretches 471 feet across, creates a reservoir covering 630 acres, has a maximum storage capacity of 3,140 acre-feet, and collects water from a drainage area of 4,001 square miles. Completed in 1910, the structure is over a century old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/19/2009. That was over 16 years ago.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyHenry
Nearest CityOakland Mills
River/StreamSkunk River
Coordinates40.93460, -91.61580

Physical Characteristics

Dam TypeGravity
NID Height10 ft
Dam Height10 ft
Dam Length471 ft
Year Completed1910 (116 years old)

Storage & Hydraulics

NID Storage3,140 acre-ft
Max Storage3,140 acre-ft
Normal Storage3,140 acre-ft
Surface Area630 acres
Drainage Area4,001 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerHenry County Conservation Board
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection10/19/2009
Emergency Action PlanNot Required

Identifiers

NID IDIA01315
Federal IDIA01315
More InfoState Dam Safety Program

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