Larkin Dam

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

About Larkin Dam

The primary purpose of Larkin 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 F Glenn Larkin (private). It impounds the Tr-skunk River near Colfax.

The dam stands 30 feet tall and stretches 290 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 38 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
Coordinates41.87220, -93.48850

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length290 ft
Year Completed1965 (61 years old)

Storage & Hydraulics

NID Storage38 acre-ft
Max Storage38 acre-ft
Normal Storage25 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

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

Identifiers

NID IDIA01017
Federal IDIA01017
More InfoState Dam Safety Program

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