Shahan Dam

Shahan Dam is an earth dam located in Adair County, Missouri, built in 1993. It carries a Low hazard potential classification.

About Shahan Dam

The primary purpose of Shahan 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 Lyle Shahan (private). It impounds the Tr-bear Creek near Louisiana.

The dam stands 26 feet tall and stretches 362 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 47 acre-feet, and collects water from a drainage area of 155 square miles. Completed in 1993, the structure is 33 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
CountyAdair
Nearest CityLouisiana
River/StreamTr-bear Creek
Coordinates40.14940, -92.52107

Physical Characteristics

Dam TypeEarth
NID Height26 ft
Dam Height26 ft
Dam Length362 ft
Year Completed1993 (33 years old)

Storage & Hydraulics

NID Storage47 acre-ft
Max Storage47 acre-ft
Normal Storage38 acre-ft
Surface Area2 acres
Drainage Area155 sq mi
Max Discharge200 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeGrade Stabilization
OwnerLYLE SHAHAN
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDMO50103
Federal IDMO50103
More InfoState Dam Safety Program

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