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Twelve Mile Creek Watershed Site 72-1

Union CountyIowa

Twelve Mile Creek Watershed Site 72-1 is an earth dam located in Union County, Iowa, built in 1979. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height27 ft
Built197947 years ago

Dam profile

NID height · 27 ft
27 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

27 ft tall and 550 ft long, taller than 59% 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 Twelve Mile Creek Watershed Site 72-1

The primary purpose of Twelve Mile Creek Watershed Site 72-1 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 Union County Swcd (local government). It impounds the Tr-twelve Mile Creek near Afton.

The dam stands 27 feet tall and stretches 550 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 148 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1979, the structure is 47 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.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

Location

StateIowa
CountyUnion
Nearest CityAfton
River/StreamTr-twelve Mile Creek
Coordinates41.09750, -94.32120

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Height27 ft
Dam Length550 ft
Year Completed1979 (47 years old)

Storage & Hydraulics

NID Storage148 acre-ft
Max Storage148 acre-ft
Normal Storage30 acre-ft
Surface Area5 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerUnion County Swcd
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDIA01994
Federal IDIA01994
More InfoState Dam Safety Program

Nearby Dams

Twelve Mile Creek Watershed Site 72-2 0.5 mi Low Twelve Mile Creek Watershed Site 73 0.6 mi Low Twelve Mile Creek Watershed Site 68-1 1.2 mi Low Twelve Mile Creek Watershed Site 71 1.6 mi Low Hawk Lake Dam 1.7 mi Low Dory Dam 1.8 mi Low Twelve Mile Creek Watershed Site 67 2.2 mi Low Twelve Mile Creek Watershed Site 68-2 2.2 mi Low Twelve Mile Creek Watershed Site 77 2.5 mi Low Three Mile Creek Watershed Site 49 2.6 mi Low