Mill Picayune Watershed Site S-10-2

Mill Picayune Watershed Site S-10-2 is an earth dam located in Harrison County, Iowa, built in 1965. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height49 ft
Built196561 years ago

Dam profile

NID height · 49 ft
49 FT TEN-STORY BUILDINGMEDIAN U.S. DAM · 24 FT

49 ft tall and 865 ft long, taller than 92% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.

About Mill Picayune Watershed Site S-10-2

The primary purpose of Mill Picayune Watershed Site S-10-2 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 Harrison County Swcd (local government). It impounds the Tr-picayune Creek near Woodbine.

The dam stands 49 feet tall and stretches 865 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 206 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1965, 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.

At 49 feet, this dam is taller than 92% of dams nationwide.

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Location

StateIowa
CountyHarrison
Nearest CityWoodbine
River/StreamTr-picayune Creek
Coordinates41.72320, -95.65350

Physical Characteristics

Dam TypeEarth
NID Height49 ft
Dam Height49 ft
Dam Length865 ft
Year Completed1965 (61 years old)

Storage & Hydraulics

NID Storage206 acre-ft
Max Storage206 acre-ft
Normal Storage96 acre-ft
Surface Area9 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

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

Identifiers

NID IDIA00463
Federal IDIA00463
More InfoState Dam Safety Program