East Fork Grand River Watershed Site A-94

East Fork Grand River Watershed Site A-94 is an earth dam located in Ringgold County, Iowa, built in 2006. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height31 ft
Built200620 years ago

Dam profile

NID height · 31 ft
31 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

31 ft tall and 620 ft long, taller than 72% of U.S. dams with a recorded height. 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 East Fork Grand River Watershed Site A-94

The primary purpose of East Fork Grand River Watershed Site A-94 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 Ringgold County Swcd (local government). It impounds the Tr-east Fk Grand R near State of Missouri.

The dam stands 31 feet tall and stretches 620 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 82 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2006, 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
CountyRinggold
Nearest CityState of Missouri
River/StreamTr-east Fk Grand R
Coordinates40.80430, -94.11540

Physical Characteristics

Dam TypeEarth
NID Height31 ft
Dam Height31 ft
Dam Length620 ft
Year Completed2006 (20 years old)

Storage & Hydraulics

NID Storage82 acre-ft
Max Storage82 acre-ft
Normal Storage25 acre-ft
Surface Area5 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerRinggold County Swcd
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDIA04004
Federal IDIA04004
More InfoState Dam Safety Program