Located in Blockton, Iowa, the Blockton Watershed Site S-1 is a key part of the local water resource management system. Owned by the local government and regulated by the Iowa Department of Natural Resources, this earth dam structure serves multiple purposes including fire protection, stock maintenance, and small fish pond management. Completed in 1966, the dam has a height of 24 feet and a storage capacity of 81 acre-feet, with a surface area of 3.3 acres and a drainage area of 0.37 square miles.

Managed by the USDA NRCS, this watershed site plays a crucial role in flood risk reduction in the area, with a low hazard potential and a moderate risk assessment rating. The dam has an uncontrolled spillway type and has not been modified since its completion. Despite not having a current condition assessment, the structure is deemed to be in satisfactory condition. With a history of serving the community for over five decades, the Blockton Watershed Site S-1 stands as a testament to sustainable water resource management practices in the region.

As climate change continues to impact water resources, sites like Blockton Watershed Site S-1 become increasingly important for ensuring water security and resilience in the face of environmental challenges. With its strategic location on the TR-Platte River and its vital role in maintaining local water supplies, this dam represents a valuable asset for the community. By upholding state regulations and undergoing regular inspections, the Blockton Watershed Site S-1 continues to be a reliable resource for water management and conservation efforts in Taylor County, Iowa.