Waubonsie Cr. Watershed Site 23-3

Waubonsie Cr. Watershed Site 23-3 is an earth dam located in Mills County, Iowa, built in 1987. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Waubonsie Cr. Watershed Site 23-3

The primary purpose of Waubonsie Cr. Watershed Site 23-3 is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Mills County Swcd (local government). It impounds the Tr- Waubonsie Cr. near Bartlett.

The dam stands 53 feet tall and stretches 935 feet across, creates a reservoir covering 45 acres, has a maximum storage capacity of 1,333 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1987, the structure is 39 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 07/29/2020.

At 53 feet, this dam is taller than 94% of dams nationwide.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyMills
Nearest CityBartlett
River/StreamTr- Waubonsie Cr.
Coordinates40.94370, -95.68920

Physical Characteristics

Dam TypeEarth
NID Height53 ft
Dam Height53 ft
Dam Length935 ft
Year Completed1987 (39 years old)

Storage & Hydraulics

NID Storage1,333 acre-ft
Max Storage1,333 acre-ft
Normal Storage721 acre-ft
Surface Area45 acres
Drainage Area1 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerMills County SWCD
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection07/29/2020
Emergency Action PlanNot Required

Identifiers

NID IDIA02377
Federal IDIA02377
More InfoState Dam Safety Program

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