Heater Dam, located in Marion County, Oregon, is a privately owned structure built in 1959 primarily for irrigation purposes. This earth dam stands at a height of 25 feet and has a hydraulic height of 20 feet, with a structural height of 28 feet. The dam spans 385 feet in length and has a storage capacity of 32 acre-feet, serving as a water resource for the surrounding area.

Situated on the South Branch Valentine Creek, Heater Dam plays a vital role in water management for agricultural needs in the region. With a significant hazard potential, the dam has not been rated for its condition assessment, highlighting the importance of regular inspections and maintenance. The outlet gates consist of a slide (sluice gate), and the dam is regulated by the Oregon Water Resources Department.

Water resource and climate enthusiasts can appreciate Heater Dam for its contribution to irrigation and water storage in the area. The dam's location and design provide valuable insights into sustainable water management practices, making it a noteworthy structure for those interested in the intersection of water resources and infrastructure development.