Grand Mesa #8, located in Whitewater, Colorado, is a privately owned Earth dam constructed in 1901 for irrigation purposes on Kannah Creek. With a height of 21 feet and a storage capacity of 678 acre-feet, this dam serves the vital function of regulating water flow for agricultural activities in the region. Despite its age, the dam is in fair condition and is inspected every two years to ensure its structural integrity.

The spillway of Grand Mesa #8 is uncontrolled, with a width of 76 feet, and the dam has a significant hazard potential due to its location and purpose. The surrounding area covers a surface area of 37 acres and has a drainage area of 3 square miles. The dam has a moderate risk assessment rating of 3, indicating the need for ongoing risk management measures to safeguard against potential emergencies.

Managed by private owners, Grand Mesa #8 plays a crucial role in water resource management in Mesa County, Colorado. Its historical significance, coupled with its continued functionality for irrigation, highlights the importance of maintaining and monitoring dams in the face of changing climate conditions and water resource demands.