Arcola Subwatershed Site B-5350 is a dam located in Monona, Iowa, owned by the local government with a primary purpose of fire protection, stock, or small fish pond. Constructed in 1965 by the USDA NRCS, this earth dam stands at a height of 30 feet and has a length of 280 feet, providing a storage capacity of 27 acre-feet. The dam serves multiple purposes including fire protection, stock watering, and flood risk reduction for the surrounding area.

Situated on the TR- Little Sioux River, this low hazard potential dam has a moderate risk assessment rating. While the condition of the dam is currently not rated, it is under state regulation, inspection, and enforcement by the Iowa DNR. The dam's spillway type is uncontrolled, designed to manage potential overflow during high water events. With a drainage area of 0.33 square miles, this dam plays a crucial role in water resource management in the region, offering valuable flood protection and water storage capabilities for the local community.

Overall, Arcola Subwatershed Site B-5350 is a vital infrastructure asset in Monona, Iowa, providing essential water resource benefits for the area. Managed and regulated by state authorities, this earth dam serves as a crucial component in the local water management system, offering flood protection, stock watering, and fire protection capabilities. With its strategic location on the TR- Little Sioux River, this dam plays a key role in maintaining water security and resilience in the region, demonstrating the importance of sustainable water resource management practices.