Aurora-Rampart is a significant water supply dam located in Douglas County, Colorado, specifically in the city of Kassler. Built in 1964, this earth dam stands at a height of 48 feet with a hydraulic height of 52 feet and a structural height of 62 feet. It serves the primary purpose of water supply and has a storage capacity of 1,596 acre-feet, with a normal storage level of 1,200 acre-feet.

The dam is situated on Willow Creek-OS and is regulated by the Department of Water Resources (DWR) in Colorado. With a spillway type of uncontrolled and a spillway width of 52 feet, Aurora-Rampart has a hazard potential rated as significant, although its condition assessment is deemed satisfactory as of the last inspection in June 2019. The risk assessment for the dam is moderate (3), indicating a level of potential risk that is being managed effectively.

This structure, owned by the local government, plays a crucial role in supplying water to the surrounding area and ensuring water resource management. With its strategic location and design features, Aurora-Rampart stands as a vital component of the water infrastructure in the region, contributing to the sustainable management of water resources in Colorado.