Big Wash is a Federal-owned flood control structure located in Milford, Utah. Constructed in 1943 by the Bureau of Land Management, this gravity dam stands at a height of 24 feet with a hydraulic height of 19 feet and a length of 742 feet. Its primary purpose is flood risk reduction, with a storage capacity of 97 acre-feet. While the dam has a low hazard potential, its condition assessment is currently not rated, with the last inspection conducted in September 2012.

Managed by the Bureau of Land Management, Big Wash plays a crucial role in mitigating flood risks in the region. The dam is regulated by the Utah Division of Water Rights and undergoes regular inspections and enforcement to ensure its structural integrity and functionality. While the structure has not been modified in recent years and does not have a designated spillway, it is equipped to handle potential emergencies with an Emergency Action Plan in place, although details on its preparedness and compliance with guidelines are not available. Water resource and climate enthusiasts will find Big Wash to be an interesting case study in flood control infrastructure management and the importance of maintaining and monitoring such structures for public safety and environmental protection.