Big Wyacondah Watershed Site 27-G-2 is a significant earth dam located in the Davis County of Iowa, specifically in the city of Arbele. Built in 1971 by the USDA NRCS, this dam serves multiple purposes including fire protection, stock, and small fish pond maintenance, as well as flood risk reduction. With a height of 27 feet and a length of 510 feet, the dam has a storage capacity of 64 acre-feet, providing essential water resource management for the surrounding area.

Managed by the Iowa Department of Natural Resources, this dam is regulated, permitted, inspected, and enforced by state authorities. Situated along the TR-South Wyacondah River, it plays a crucial role in preserving the local ecosystem and ensuring water security for the region. Despite being categorized as having low hazard potential, the dam's risk assessment indicates a moderate level of risk (3), prompting the need for ongoing monitoring and risk management measures to safeguard the community and environment.

The Big Wyacondah Watershed Site 27-G-2 presents an intriguing case study for water resource and climate enthusiasts due to its comprehensive design, state regulation, and multi-faceted purposes. As one of the key structures in the area managed by the USDA NRCS, this dam exemplifies the importance of sustainable water management practices in mitigating flood risks, preserving ecosystems, and supporting various uses such as fire protection and stock maintenance. With its location in a critical watershed and its role in water storage and flood control, this site showcases the intersection of engineering, conservation, and regulatory efforts in ensuring the resilience of water resources in the region.