Tass, located in Arvada, Wyoming, is a privately owned earth dam on Burnett Creek completed in 1965 for irrigation purposes. Standing at 35 feet high with a hydraulic height of 31 feet, Tass has a structural height of 36 feet and a length of 243 feet, providing a storage capacity of 112 acre-feet. The dam has a spillway width of 80 feet and is classified as having a low hazard potential with a poor condition assessment as of the last inspection in August 2018.

Despite its age and condition, Tass remains regulated by the State of Wyoming and is subject to regular inspections, enforcement, and permitting. The dam is situated in Johnson County and falls under the jurisdiction of the SEO regulatory agency. The risk assessment for Tass is moderate, indicating potential hazards that require attention and monitoring. The dam does not have a current Emergency Action Plan (EAP) in place, highlighting the importance of implementing risk management measures to ensure the safety and integrity of the structure for both water resource and climate enthusiasts.