Crane Creek Main Dam, also known as Crane Creek Primary Dam, is a privately owned structure located in Weiser, Idaho. Completed in 1912, this earth dam stands at a height of 64 feet and has a hydraulic height of 55 feet. With a storage capacity of 56,800 acre-feet and covering a surface area of 3,000 acres, this dam plays a crucial role in regulating water flow in Crane Creek and the Weiser River.

Managed by the Idaho Department of Water Resources, Crane Creek Main Dam is classified as a high hazard potential structure with fair condition assessment. The dam features an uncontrolled spillway with a width of 130 feet and operates outlet gates in the form of slide gates. The dam holds a moderate risk rating and undergoes inspections every two years, with the last assessment conducted in September 2019.

Water resource and climate enthusiasts will appreciate the historical significance and engineering marvel of Crane Creek Main Dam. Its strategic location and function in storing water for agricultural and recreational purposes, along with its impact on the local ecosystem, make it a vital piece of infrastructure in Washington County, Idaho. Despite its age, the dam continues to be actively regulated and inspected to ensure public safety and water resource management for the region.