Dry Creek Main, located in Idaho, is a private irrigation dam built in 1976 on the Dry Creek and Big Willow Creek rivers. Standing at a height of 67.81 feet with a storage capacity of 1859.1 acre-feet, this earth dam plays a vital role in the irrigation of surrounding lands. Despite a fair condition assessment, the dam poses a high hazard potential and is regulated by the Idaho Department of Water Resources.

With a spillway width of 300 feet and an uncontrolled spillway type, the dam's infrastructure includes a slide gate for outlet control. The surrounding area covers a surface area of 160 acres and has a drainage area of 2.58 square miles. The last inspection in May 2020 revealed a moderate risk level, prompting the need for a comprehensive risk management plan to ensure the safety and effectiveness of the structure.

Dry Creek Main serves as a critical water resource for agricultural activities in the region, highlighting the importance of maintaining its integrity and functionality. As climate change continues to impact water availability and usage patterns, ensuring the sustainability of dams like Dry Creek Main is essential for supporting the local ecosystem and economy. With proper regulation, inspection, and maintenance, this dam will continue to play a vital role in water management for years to come.