Giberson Pond Dam

Giberson Pond Dam is an earth dam located in Greene County, Illinois, built in 1970. It carries a Low hazard potential classification.

About Giberson Pond Dam

Giberson Pond Dam is a dam in Greene, Illinois. The dam is owned by Carroll Giberson;carroll Giberson (private). It impounds the Tr- Macoupin Creek near Spanky.

The dam stands 29 feet tall and stretches 175 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 35 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1970, 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 08/22/2025.

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Low HazardNot Available ConditionEmergency Action Plan: No

Location

StateIllinois
CountyGreene
Nearest CitySpanky
River/StreamTr- Macoupin Creek
Coordinates39.24879, -90.46788

Physical Characteristics

Dam TypeEarth
NID Height29 ft
Dam Height29 ft
Dam Length175 ft
Year Completed1970 (56 years old)

Storage & Hydraulics

NID Storage35 acre-ft
Max Storage35 acre-ft
Normal Storage27 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Max Discharge80 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeOther
OwnerCARROLL GIBERSON;CARROLL GIBERSON
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Available
Last Inspection08/22/2025
Emergency Action PlanNo

Identifiers

NID IDIL40025
Federal IDIL40025
More InfoState Dam Safety Program

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