Gahr Pond Dam 1

Gahr Pond Dam 1 is an earth dam located in Macoupin County, Illinois, built in 1976. It carries a Low hazard potential classification.

About Gahr Pond Dam 1

The primary purpose of Gahr Pond Dam 1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Oneia Gahr;oneia Gahr (private). It impounds the Tr- Macoupin Creek N near Jalapa.

The dam stands 32 feet tall and stretches 205 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 31 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1976, the structure is 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 05/10/2024.

At 32 feet, this dam is taller than 76% of dams nationwide.

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Low HazardNot Available ConditionEmergency Action Plan: Not Required

Location

StateIllinois
CountyMacoupin
Nearest CityJalapa
River/StreamTr- Macoupin Creek N
Coordinates39.23164, -89.99248

Physical Characteristics

Dam TypeEarth
NID Height32 ft
Dam Height32 ft
Dam Length205 ft
Year Completed1976 (50 years old)

Storage & Hydraulics

NID Storage31 acre-ft
Max Storage31 acre-ft
Normal Storage20 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Max Discharge100 cfs

Ownership & Safety

PurposeIrrigation
OwnerONEIA GAHR;ONEIA GAHR
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Available
Last Inspection05/10/2024
Emergency Action PlanNot Required

Identifiers

NID IDIL40059
Federal IDIL40059
More InfoState Dam Safety Program

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