(New) Olathe Lake, located in Bonner Springs, Kansas, is a vital water supply source designed by Payne and Brockway in 1955. The dam, standing at a structural height of 69 feet and a hydraulic height of 63 feet, serves the primary purpose of water supply for the region. With a maximum storage capacity of 5626 acre-feet and a normal storage capacity of 3330 acre-feet, the lake covers a surface area of 165 acres and drains an area of 16.9 square miles.

The dam on (New) Olathe Lake poses a high hazard potential, although its current condition assessment rates as fair. Despite this, the dam is regulated, permitted, inspected, and enforced by the Kansas Department of Agriculture, ensuring its safety and functionality. The spillway type is uncontrolled, with a maximum discharge capacity of 5135 cubic feet per second. The risk assessment for the dam is moderate, with a DSAC assigned date and risk management measures in place.

For water resource and climate enthusiasts, (New) Olathe Lake serves as a critical infrastructure for water supply in Johnson County, Kansas. With its strategic location on Cedar Creek, the dam plays a crucial role in managing water resources and mitigating flood risks in the region. As a well-regulated and inspected structure, the dam stands as a testament to effective water management practices in the state, ensuring the safety and security of the surrounding communities.