Groseclose Dam

Groseclose Dam is an earth dam located in Story County, Iowa, built in 1965. It carries a Low hazard potential classification.

About Groseclose Dam

The primary purpose of Groseclose Dam 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 Ora Groseclose (private). It impounds the Tr-skunk River near Colfax.

The dam stands 29 feet tall and stretches 500 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 109 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. The most recent inspection on record was 10/20/1967. That was over 58 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyStory
Nearest CityColfax
River/StreamTr-skunk River
Coordinates41.86820, -93.48570

Physical Characteristics

Dam TypeEarth
NID Height29 ft
Dam Height29 ft
Dam Length500 ft
Year Completed1965 (61 years old)

Storage & Hydraulics

NID Storage109 acre-ft
Max Storage109 acre-ft
Normal Storage57 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerOra Groseclose
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection10/20/1967
Emergency Action PlanNot Required

Identifiers

NID IDIA01018
Federal IDIA01018
More InfoState Dam Safety Program

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