New Wellington Lake

New Wellington Lake is an earth dam located in Sumner County, Kansas, built in 1996. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About New Wellington Lake

The primary purpose of New Wellington 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 Wellington, City Of (local government). It impounds the East Prairie Creek.

The dam stands 39 feet tall and stretches 3,700 feet across, creates a reservoir covering 675 acres, has a maximum storage capacity of 15,986 acre-feet, and collects water from a drainage area of 17 square miles. Completed in 1996, the structure is 30 years old.

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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 04/14/2023.

At 39 feet, this dam is taller than 86% of dams nationwide.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateKansas
CountySumner
River/StreamEast Prairie Creek
Coordinates37.20292, -97.52795

Physical Characteristics

Dam TypeEarth
NID Height39 ft
Dam Height39 ft
Dam Length3,700 ft
Year Completed1996 (30 years old)

Storage & Hydraulics

NID Storage15,986 acre-ft
Max Storage15,986 acre-ft
Normal Storage5,907 acre-ft
Surface Area675 acres
Drainage Area17 sq mi
Max Discharge8,205 cfs

Ownership & Safety

PurposeWater Supply
OwnerWELLINGTON, CITY OF
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection04/14/2023
Emergency Action PlanYes

Identifiers

NID IDKS07526
Federal IDKS07526
More InfoState Dam Safety Program

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