Selway Dam

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

About Selway Dam

The primary purpose of Selway 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 Neva Selway (private). It impounds the Tr-foree Branch near Canton.

The dam stands 29 feet tall and stretches 250 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 20 acre-feet, and collects water from a drainage area of 110 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-foree Branch
Coordinates40.33770, -91.82430

Physical Characteristics

Dam TypeEarth
NID Height29 ft
Dam Height26 ft
Dam Length250 ft
Year Completed2006 (20 years old)

Storage & Hydraulics

NID Storage20 acre-ft
Max Storage20 acre-ft
Normal Storage12 acre-ft
Surface Area7 acres
Drainage Area110 sq mi
Max Discharge71 cfs
Spillway TypeUncontrolled

Ownership & Safety

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

Identifiers

NID IDMO51401
Federal IDMO51401
More InfoState Dam Safety Program

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