Keenen Dam

Keenen Dam is an earth dam located in Jasper County, Iowa, built in 1964. It carries a Low hazard potential classification.

About Keenen Dam

The primary purpose of Keenen 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 Hollis P Keenan (private). It impounds the Tr-rock Creek near Rock Creek Lake.

The dam stands 34 feet tall and stretches 376 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 63 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1964, 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 04/06/1977. That was over 49 years ago.

At 34 feet, this dam is taller than 80% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyJasper
Nearest CityRock Creek Lake
River/StreamTr-rock Creek
Coordinates41.76390, -92.84790

Physical Characteristics

Dam TypeEarth
NID Height34 ft
Dam Height34 ft
Dam Length376 ft
Year Completed1964 (62 years old)

Storage & Hydraulics

NID Storage63 acre-ft
Max Storage63 acre-ft
Normal Storage45 acre-ft
Surface Area4 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerHollis P Keenan
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection04/06/1977
Emergency Action PlanNot Required

Identifiers

NID IDIA00541
Federal IDIA00541
More InfoState Dam Safety Program

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