Nelson South Wetland Dam

Nelson South Wetland Dam is an earth dam located in Pocahontas County, Iowa, built in 2004. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height10 ft
Built200422 years ago

Dam profile

NID height · 10 ft
10 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

10 ft tall and 2,500 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.

About Nelson South Wetland Dam

The primary purpose of Nelson South Wetland Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Pocahontas County Conservation Board (local government). It impounds the Tr- Cedar Creek near Laurens.

The dam stands 10 feet tall and stretches 2,500 feet across, creates a reservoir covering 22 acres, has a maximum storage capacity of 151 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2004, 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.

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Location

StateIowa
CountyPocahontas
Nearest CityLaurens
River/StreamTr- Cedar Creek
Coordinates42.87250, -94.86670

Physical Characteristics

Dam TypeEarth
NID Height10 ft
Dam Height10 ft
Dam Length2,500 ft
Year Completed2004 (22 years old)

Storage & Hydraulics

NID Storage151 acre-ft
Max Storage151 acre-ft
Normal Storage25 acre-ft
Surface Area22 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerPocahontas County Conservation Board
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDIA03755
Federal IDIA03755
More InfoState Dam Safety Program