Mill Creek Strcture 2 Dam

Mill Creek Strcture 2 Dam is an earth dam located in Clark County, Illinois, built in 1973. It carries a Low hazard potential classification.

About Mill Creek Strcture 2 Dam

The primary purpose of Mill Creek Strcture 2 Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Mill Creek Conservancy District (private). It impounds the Trib Mill Creek near Hutsonville.

The dam stands 38 feet tall and stretches 645 feet across, and has a maximum storage capacity of 945 acre-feet. Completed in 1973, 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 06/29/2023.

At 38 feet, this dam is taller than 85% of dams nationwide.

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Low HazardNot Available ConditionEmergency Action Plan: No

Location

StateIllinois
CountyClark
Nearest CityHutsonville
River/StreamTrib Mill Creek
Coordinates39.38347, -87.79493

Physical Characteristics

Dam TypeEarth
NID Height38 ft
Dam Height38 ft
Dam Length645 ft
Year Completed1973 (53 years old)

Storage & Hydraulics

NID Storage945 acre-ft
Max Storage945 acre-ft
Normal Storage355 acre-ft
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerMILL CREEK CONSERVANCY DISTRICT
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Available
Last Inspection06/29/2023
Emergency Action PlanNo

Identifiers

NID IDIL00851
Federal IDIL00851
More InfoState Dam Safety Program

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