Big Park Watershed Site C-1

Big Park Watershed Site C-1 is an earth dam located in Crawford County, Iowa, built in 1962. It carries a Low hazard potential classification.

About Big Park Watershed Site C-1

The primary purpose of Big Park Watershed Site C-1 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 Crawford County Swcd (local government). It impounds the Tr-boyer River near Dunlap.

The dam stands 43 feet tall and stretches 256 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 55 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1962, 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 11/22/1963. That was over 62 years ago.

At 43 feet, this dam is taller than 89% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyCrawford
Nearest CityDunlap
River/StreamTr-boyer River
Coordinates41.89770, -95.49680

Physical Characteristics

Dam TypeEarth
NID Height43 ft
Dam Height43 ft
Dam Length256 ft
Year Completed1962 (64 years old)

Storage & Hydraulics

NID Storage55 acre-ft
Max Storage55 acre-ft
Normal Storage31 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerCrawford County SWCD
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection11/22/1963
Emergency Action PlanNot Required

Identifiers

NID IDIA00272
Federal IDIA00272
More InfoState Dam Safety Program

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