The Little Sioux Scout Ranch Dam is a privately-owned earth dam located in Monona, Iowa along the TR- Little Sioux River. Completed in 1974, this dam serves primarily for recreational purposes, providing a storage capacity of 43 acre-feet and covering a surface area of 11 acres. With a height of 46 feet and a low hazard potential, the dam is regulated by the Iowa Department of Natural Resources and undergoes regular inspections to ensure its structural integrity.

Designed by the USDA NRCS, the Little Sioux Scout Ranch Dam is a crucial part of the local water resource infrastructure, contributing to flood control and water supply management in the area. The dam's uncontrolled spillway type and soil foundation make it a reliable structure for managing water flow and maintaining the integrity of the surrounding ecosystem. Despite being classified as having a moderate risk level, the dam has not been rated for its condition assessment, underscoring the importance of continued monitoring and maintenance to ensure its long-term functionality.

Located in a scenic and culturally significant area, the Little Sioux Scout Ranch Dam stands as a testament to the collaborative efforts between private owners and government agencies in preserving water resources and enhancing recreational opportunities for the community. With its strategic positioning and storage capacity, the dam plays a vital role in mitigating potential risks and ensuring sustainable water management practices in the region. As climate change continues to impact water resources, the Little Sioux Scout Ranch Dam serves as a valuable asset for adaptation and resilience efforts, highlighting the importance of proactive stewardship in safeguarding our natural environment.