Ethyl No. 2 is a privately owned Earth dam located in Wyoming, specifically in Johnson County near the city of Arvada. Built in 1969 for irrigation purposes, this dam stands at a height of 25 feet with a hydraulic height of 20 feet. It has a storage capacity of 104 acre-feet and covers a surface area of 9 acres, drawing water from the Ethyl Draw stream.

Despite being classified as having a low hazard potential and fair condition assessment, Ethyl No. 2 is subject to regular inspections, with the last one conducted in August 2020. The dam has an uncontrolled spillway with a width of 35 feet and no outlet gates. With a moderate risk assessment rating of 3, the dam is deemed to have some potential vulnerabilities that need to be managed effectively to ensure its continued safe operation and minimize any risks to surrounding areas.

Ethyl No. 2 is a crucial piece of infrastructure in the region, providing essential water resources for irrigation purposes. Its location near the Ethyl Draw stream highlights the importance of maintaining and monitoring this dam to ensure its stability and prevent any potential hazards. Climate and water resource enthusiasts will find this dam's data and risk assessment intriguing, as it sheds light on the complex relationship between infrastructure, natural resources, and climate resilience in the area.