Waterworks Dam, also known as Olathe Waterworks North Dam, is a historical structure located in Olathe, Kansas, built in 1920 by an unknown designer. This dam serves a unique purpose, classified as "Other," with a primary dam type of "Other" as well. Standing at a height of 8.5 feet, it has a hydraulic height and structural height matching this measurement, while the National Inventory of Dams lists its height as 9 feet. The dam has a storage capacity of 15.6 acre-feet and is situated along the Mill Creek-TR stream in Johnson County, Kansas.

Despite being a local government-owned dam, Waterworks Dam is not regulated by the state of Kansas and does not have any associated structures. The dam has a high hazard potential and has not been rated for its condition. The last inspection was conducted in 2006, with a recommended inspection frequency of every 3 years. While details such as the length of the dam, spillway type, and maximum discharge are not provided, the dam's historical significance and high hazard potential make it a point of interest for water resource and climate enthusiasts in the region. Further information on emergency action plans, risk assessments, and management measures is not available for this structure.