Antelope Dam, located in Bonanza, Oregon, along the Antelope Creek, serves primarily for irrigation purposes. Completed in 1959, this earth dam stands at a height of 16 feet with a hydraulic height of 14 feet and a structural height of 17.5 feet. It has a storage capacity of 1400 acre-feet, with normal storage levels reaching 973 acre-feet. The dam spans 900 feet in length and covers a surface area of 205.4 acres, providing water resources for agricultural activities in the region.

Managed by a private owner, Antelope Dam is regulated by the state with permitting, inspection, and enforcement carried out by the Oregon Water Resources Department. Despite being classified as low hazard potential, the dam is considered to have a moderate risk level. The dam's spillway is uncontrolled, with a maximum discharge of 400 cubic feet per second, and features needle outlet gates. With a last inspection date in August 2015 and an inspection frequency of six years, the dam's condition assessment is currently not rated.

Overall, Antelope Dam plays a crucial role in sustaining water resources for irrigation in Klamath County, Oregon. Its strategic location along the Antelope Creek and efficient design ensure reliable water supply for agricultural activities in the region. As a key infrastructure for water management, the dam's operational and maintenance practices are essential to ensure its continued functionality and safety for water resource and climate enthusiasts alike.