Slack, a privately owned dam located in Owyhee, Idaho, plays a crucial role in managing water resources in the area. Built in 1916, this earth dam stands at a height of 19.8 feet and has a storage capacity of 5,000 acre-feet. Its primary purpose is categorized as "Other," with a spillway type of "Controlled" and a low hazard potential.

Managed by the Idaho Department of Water Resources, Slack is regulated, permitted, inspected, and enforced by state agencies to ensure its safety and functionality. The dam is situated on unnamed streams and Juniper Creek, contributing to the irrigation and water supply in the region. Despite being classified as having a satisfactory condition assessment in 2014, Slack is considered to have a very high risk level, emphasizing the importance of ongoing risk management measures.

With a drainage area of 58 square miles and a surface area of 713 acres, Slack serves as a critical infrastructure for water storage and flood control. Its location in a rural setting adds to its significance in supporting agriculture and environmental sustainability. As climate patterns evolve, maintaining and monitoring dams like Slack become increasingly vital to ensure water resource management and climate resilience in the region.