Water Supply Lake

Water Supply Lake is an earth dam located in Linn County, Kansas. It carries a Significant hazard potential classification and has a fair condition assessment.

About Water Supply Lake

The primary purpose of Water Supply Lake is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Mound City, City Of (local government).

The dam stands 32 feet tall and stretches 1,450 feet across, creates a reservoir covering 148 acres, has a maximum storage capacity of 3,462 acre-feet, and collects water from a drainage area of 5 square miles.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 04/08/2022.

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

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Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateKansas
CountyLinn
Coordinates38.12884, -94.89131

Physical Characteristics

Dam TypeEarth
NID Height32 ft
Dam Height32 ft
Dam Length1,450 ft

Storage & Hydraulics

NID Storage3,462 acre-ft
Max Storage3,462 acre-ft
Normal Storage1,773 acre-ft
Surface Area148 acres
Drainage Area5 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerMOUND CITY, CITY OF
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection04/08/2022
Emergency Action PlanYes

Identifiers

NID IDKS07334
Federal IDKS07334
More InfoState Dam Safety Program

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