Blackwell Dam

Blackwell Dam is an earth dam located in Davis County, Iowa, built in 1958. It carries a Low hazard potential classification.

About Blackwell Dam

The primary purpose of Blackwell 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 Dale Blackwell (private). It impounds the Tr-fox River near Mt. Sterling, Mo.

The dam stands 23 feet tall and stretches 455 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 56 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1958, 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 10/04/1960. That was over 65 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyDavis
Nearest CityMt. Sterling, Mo
River/StreamTr-fox River
Coordinates40.71340, -92.32440

Physical Characteristics

Dam TypeEarth
NID Height23 ft
Dam Height23 ft
Dam Length455 ft
Year Completed1958 (68 years old)

Storage & Hydraulics

NID Storage56 acre-ft
Max Storage56 acre-ft
Normal Storage21 acre-ft
Surface Area4 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerDale Blackwell
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection10/04/1960
Emergency Action PlanNot Required

Identifiers

NID IDIA00298
Federal IDIA00298
More InfoState Dam Safety Program

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