Appanoose County Roadgrade Dam 32-68-18

Appanoose County Roadgrade Dam 32-68-18 is an earth dam located in Appanoose County, Iowa, built in 1969. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height30 ft
Built196957 years ago

Dam profile

NID height · 30 ft
30 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

30 ft tall and 530 ft long, taller than 68% 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 Appanoose County Roadgrade Dam 32-68-18

The primary purpose of Appanoose County Roadgrade Dam 32-68-18 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 Appanoose County Board of Supervisors (local government). It impounds the Tr-shoal Creek near Mendota, Mo.

The dam stands 30 feet tall and stretches 530 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 129 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1969, the structure is well into its service life at over 50 years 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.

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Location

StateIowa
CountyAppanoose
Nearest CityMendota, Mo
River/StreamTr-shoal Creek
Coordinates40.63840, -92.96070

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length530 ft
Year Completed1969 (57 years old)

Storage & Hydraulics

NID Storage129 acre-ft
Max Storage129 acre-ft
Normal Storage27 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerAppanoose County Board of Supervisors
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDIA00087
Federal IDIA00087
More InfoState Dam Safety Program