West Fork Big Creek Watershed Site S-10 in Iowa is a key water resource managed by local government authorities and designed by the USDA NRCS. This site, located in Decatur County, serves multiple purposes including fire protection, stock, small fish pond maintenance, and flood risk reduction. The earth dam, completed in 1996, stands at a height of 22 feet and has a storage capacity of 106 acre-feet, with a normal storage level of 26 acre-feet and a drainage area of 0.35 square miles.

The dam's spillway is uncontrolled and the hazard potential is rated as low, with a moderate risk assessment score of 3. Despite being in good condition and not rated for assessment, the dam lacks an Emergency Action Plan (EAP) and inundation maps for potential emergency situations. The site's location in the West Fork Big Creek Watershed and its management by the Iowa DNR make it a crucial point of interest for water resource and climate enthusiasts, highlighting the importance of effective monitoring, maintenance, and emergency preparedness for such critical infrastructure.