Rollins is a private water supply dam located in Natrona, Wyoming, near the city of Casper. Built in 1954, this earth dam stands at 30 feet high and spans 504 feet in length, with a maximum storage capacity of 43 acre-feet. It is primarily regulated by the State Engineer's Office (SEO) and is inspected, permitted, and enforced by the state agency, ensuring its compliance with safety standards. Rollins Draw, the river or stream it controls, serves as the primary water source for this structure.

Despite being classified as having a low hazard potential and fair condition assessment, Rollins has a moderate risk level according to a recent assessment. The dam has an uncontrolled spillway type, with a spillway width of 110 feet, and no outlet gates. While the dam has not been modified over the years, it undergoes regular inspections every five years to ensure its structural integrity and safety. In the event of an emergency, there is no Emergency Action Plan (EAP) prepared, highlighting a potential area for improvement in risk management measures at this site.