Whan Farms Dam

Whan Farms Dam is an earth dam located in Lewis County, Missouri, built in 2004. It carries a Low hazard potential classification.

About Whan Farms Dam

The primary purpose of Whan Farms Dam is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by Whan Farms (private). It impounds the Tr-middle Fabius near Monticello.

The dam stands 32 feet tall and stretches 400 feet across, creates a reservoir covering 22 acres, has a maximum storage capacity of 71 acre-feet, and collects water from a drainage area of 390 square miles. Completed in 2004, the structure is relatively new.

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 11/01/2004. That was over 21 years ago.

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

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyLewis
Nearest CityMonticello
River/StreamTr-middle Fabius
Coordinates40.17661, -91.90891

Physical Characteristics

Dam TypeEarth
NID Height32 ft
Dam Height28 ft
Dam Length400 ft
Year Completed2004 (22 years old)

Storage & Hydraulics

NID Storage71 acre-ft
Max Storage71 acre-ft
Normal Storage38 acre-ft
Surface Area22 acres
Drainage Area390 sq mi
Max Discharge32 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeGrade Stabilization
OwnerWHAN FARMS
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection11/01/2004
Emergency Action PlanNot Required

Identifiers

NID IDMO51263
Federal IDMO51263
More InfoState Dam Safety Program

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