Crane Gulch Main Fork is a significant water resource infrastructure located in Boise, Idaho, designed by Morrison Knudsen Corp and regulated by the Idaho Department of Water Resources. Completed in 1998, this earth dam stands at a height of 46 feet and has a hydraulic height of 44 feet, serving primarily for flood risk reduction along Crane Creek and the Boise River. With a storage capacity of 19 acre-feet and a maximum discharge rate of 1550 cubic feet per second, this dam plays a crucial role in managing water flow and protecting the surrounding areas from potential flooding.

The dam's spillway, which is uncontrolled and 150 feet wide, ensures the safe release of excess water during peak flow periods. Despite its satisfactory condition assessment in November 2018, Crane Gulch Main Fork is classified as having a significant hazard potential with a moderate risk assessment rating of 3. Regular inspections are conducted every four years to ensure the dam's structural integrity and functionality are maintained. With its location in Ada County, Idaho, this dam stands as a vital component of water resource management in the region, highlighting the importance of sustainable infrastructure for climate resilience.

Water resource and climate enthusiasts can appreciate the engineering and regulatory intricacies involved in the operation of Crane Gulch Main Fork. As a locally owned dam managed for flood risk reduction, this structure showcases the collaboration between the Natural Resources Conservation Service and state agencies in ensuring effective water management and safety. The presence of this earth dam underscores the continuous efforts to mitigate water-related hazards and protect communities in the face of changing climate patterns. Its utilization of rock and soil foundations further emphasizes the importance of sustainable infrastructure development in safeguarding water resources for future generations.