Corliss is a privately owned earth dam located in Nyssa, Oregon, on Butte Creek, a tributary to the Malheur River. Built in 1919 for irrigation purposes, the dam stands at a height of 10 feet with a hydraulic height of 8 feet. It has a length of 1155 feet and a storage capacity of 75 acre-feet, serving a drainage area of 1.76 square miles. With a low hazard potential and a condition assessment of "Not Rated," Corliss remains a vital infrastructure for water resource management in the region.

Despite being regulated by the Oregon Water Resources Department, Corliss has not been recently inspected as of May 2019, with an inspection frequency of 6 years. The dam does not have an emergency action plan in place, and there is limited information available on risk management measures. Although considered to have a low hazard potential, the lack of recent assessments and emergency preparedness highlights the importance of continued monitoring and maintenance to ensure the safety and efficiency of this crucial irrigation structure in Malheur County.

As an essential component of the local water supply infrastructure, Corliss plays a significant role in supporting agricultural activities in the region. With its historical significance dating back over a century, efforts to update inspection protocols, develop emergency action plans, and implement risk management measures will be crucial in safeguarding the longevity and functionality of this key earth dam for future generations of water resource and climate enthusiasts.