Shannon Dam

Shannon Dam is an earth dam located in Clark County, Missouri, built in 2006. It carries a Low hazard potential classification.

About Shannon Dam

The primary purpose of Shannon 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 Randy Shannon (private). It impounds the Tr-wyaconda near Canton.

The dam stands 29 feet tall and stretches 280 feet across, creates a reservoir covering 37 acres, has a maximum storage capacity of 54 acre-feet, and collects water from a drainage area of 2,598 square miles. Completed in 2006, 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 09/30/2006. That was over 19 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyClark
Nearest CityCanton
River/StreamTr-wyaconda
Coordinates40.33870, -91.77440

Physical Characteristics

Dam TypeEarth
NID Height29 ft
Dam Height26 ft
Dam Length280 ft
Year Completed2006 (20 years old)

Storage & Hydraulics

NID Storage54 acre-ft
Max Storage54 acre-ft
Normal Storage39 acre-ft
Surface Area37 acres
Drainage Area2,598 sq mi
Max Discharge21 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeGrade Stabilization
OwnerRANDY SHANNON
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection09/30/2006
Emergency Action PlanNot Required

Identifiers

NID IDMO51402
Federal IDMO51402
More InfoState Dam Safety Program

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