Mccoy

Mccoy is an earth dam located in Iowa County, Wisconsin, built in 1974. It carries a Low hazard potential classification and has a fair condition assessment.

About Mccoy

The primary purpose of Mccoy 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 Mccoy, James (private). It impounds the Tr Blue Mounds Branch near Blanchardville.

The dam stands 19 feet tall and stretches 335 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 60 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1974, 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 10/27/2020.

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Low HazardFair ConditionEmergency Action Plan: No

Location

StateWisconsin
CountyIowa
Nearest CityBlanchardville
River/StreamTr Blue Mounds Branch
Coordinates42.85094, -89.86425

Physical Characteristics

Dam TypeEarth
NID Height19 ft
Dam Height19 ft
Dam Length335 ft
Year Completed1974 (52 years old)

Storage & Hydraulics

NID Storage60 acre-ft
Max Storage60 acre-ft
Normal Storage21 acre-ft
Surface Area5 acres
Drainage Area0 sq mi
Max Discharge60 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerMcCoy, James
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection10/27/2020
Emergency Action PlanNo

Identifiers

NID IDWI00861
Federal IDWI00861
More InfoState Dam Safety Program

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