Gross Dam

Gross Dam is an earth dam located in Callaway County, Missouri, built in 1976. It carries a Low hazard potential classification.

About Gross Dam

The primary purpose of Gross Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by C&w Gross Corp (private). It impounds the Tr Prairie Fork near Big Spring.

The dam stands 30 feet tall, creates a reservoir covering 9 acres, has a maximum storage capacity of 144 acre-feet, and collects water from a drainage area of 97 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.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyCallaway
Nearest CityBig Spring
River/StreamTr Prairie Fork
Coordinates38.83503, -91.71939

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Year Completed1976 (50 years old)

Storage & Hydraulics

NID Storage144 acre-ft
Max Storage144 acre-ft
Normal Storage78 acre-ft
Surface Area9 acres
Drainage Area97 sq mi

Ownership & Safety

PurposeIrrigation
OwnerC&W GROSS CORP
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDMO11303
Federal IDMO11303
More InfoState Dam Safety Program

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