Mchan is a privately owned dam located in Camas, Idaho, with a primary purpose of irrigation. Completed in 1918, the dam stands at a height of 20.9 feet and has a storage capacity of 345 acre-feet. Situated on Spring Creek and Camas Creek, the dam plays a vital role in providing water for agricultural activities in the surrounding area.

The structure is primarily made of earth and stone with rock and soil foundations. With a spillway type classified as "uncontrolled" and a hazard potential rated as "Low," Mchan is considered to be in fair condition as of its last assessment in October 2019. The dam has a moderate risk assessment level, indicating a need for ongoing monitoring and maintenance to ensure its continued safety and effectiveness in water resource management for the region.

Owned and regulated by the state of Idaho, Mchan undergoes regular inspections and is subject to state permitting, inspection, and enforcement. With its moderate risk profile, the dam serves as a critical component of the local water infrastructure, highlighting the importance of sustainable water resource management practices in the face of changing climatic conditions.