Blockton Watershed Site A-1, located in Sheridan, MO, is a local government-owned dam regulated by the Iowa Department of Natural Resources. Built in 1973 by the USDA NRCS, this earth dam serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. With a dam height of 33 feet and a length of 504 feet, it provides a storage capacity of 44 acre-feet and covers a surface area of 3.4 acres.

The dam's primary purpose is to ensure fire protection and control flood risks for the surrounding area. Despite being classified as low hazard potential, the risk assessment indicates a moderate level of risk (3) associated with the dam. Even though the condition has not been rated, the dam has passed its last inspection in 1967. With a drainage area of 0.16 square miles and being situated on the TR-PLATTE BRANCH river or stream, Blockton Watershed Site A-1 plays a vital role in water resource management within Taylor, Iowa.

Overall, Blockton Watershed Site A-1 stands as a crucial infrastructure for water resource management and climate resilience in the region. With its strategic location and design by the USDA NRCS, this dam serves as a multifunctional resource for fire protection, stock, and small fish pond, while also mitigating flood risks. As climate enthusiasts, understanding and monitoring the condition and function of such structures is essential for sustainable water management practices and environmental protection in the area.