Cob Creek Dam, located in Juntura, Oregon, is a privately owned structure used primarily for irrigation purposes. Completed in 1962, this earth dam stands at a height of 29 feet, with a hydraulic height of 27 feet and a structural height of 31 feet. It spans a length of 1000 feet and has a storage capacity of 128 acre-feet, serving the surrounding area with a normal storage of 128 acre-feet.

Situated on Visher & Cob Creeks, tributaries of the South Fork Malheur River, Cob Creek Dam plays a crucial role in managing water resources in the region. With a low hazard potential and a moderate risk assessment, the dam provides a reliable supply of water for irrigation while maintaining a safe operational status. The dam is regulated, inspected, and enforced by the Oregon Water Resources Department, ensuring its compliance with state regulations.

Despite being uncontrolled, Cob Creek Dam has a spillway width of 0 and utilizes slide (sluice gate) outlet gates for water release. The dam's condition is currently rated as "Not Rated", with the last inspection conducted in October 2014. With its important role in water management and irrigation in the area, Cob Creek Dam stands as a key infrastructure for sustainable water resource utilization in Malheur County, Oregon.