Jensen Wetland

Jensen Wetland is an earth dam located in Fremont County, Iowa, built in 2002. It carries a Low hazard potential classification.

About Jensen Wetland

The primary purpose of Jensen Wetland is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Iowa Department Of Natural Resources (state). It impounds the Tr-east Nishnabotna River near Riverton.

The dam stands 8 feet tall and stretches 1,330 feet across, creates a reservoir covering 109 acres, has a maximum storage capacity of 677 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2002, the structure is relatively new.

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. The most recent inspection on record was 11/04/2003. That was over 22 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyFremont
Nearest CityRiverton
River/StreamTr-east Nishnabotna River
Coordinates40.67860, -95.58140

Physical Characteristics

Dam TypeEarth
NID Height8 ft
Dam Height8 ft
Dam Length1,330 ft
Year Completed2002 (24 years old)

Storage & Hydraulics

NID Storage677 acre-ft
Max Storage677 acre-ft
Normal Storage216 acre-ft
Surface Area109 acres
Drainage Area0 sq mi

Ownership & Safety

PurposeFlood Risk Reduction
OwnerIowa Department of Natural Resources
Owner TypeState
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection11/04/2003
Emergency Action PlanNot Required

Identifiers

NID IDIA04040
Federal IDIA04040
More InfoState Dam Safety Program

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