Ferron Debris Basin No. 4, located in Emery, Utah, near the city of Ferron, is a vital structure designed by the USDA NRCS to mitigate flood risks along the DIVERSION HOLLOW stream. Completed in 1970, this private-owned Earth dam stands at a structural height of 29 feet and a hydraulic height of 11 feet, with a length of 1290 feet and a maximum storage capacity of 61 acre-feet. The dam's primary purpose is flood risk reduction, serving as a crucial asset in safeguarding the surrounding area from potential hazards.

Managed by the Utah Division of Water Rights, Ferron Debris Basin No. 4 is regulated, permitted, inspected, and enforced to ensure its structural integrity and functionality. With a significant hazard potential, regular inspections are carried out every 3 years to assess its condition and ensure compliance with safety standards. While the structure's condition is currently not rated, its importance in flood control and risk management cannot be understated, highlighting its critical role in protecting the local community and environment. Water resource and climate enthusiasts can appreciate the meticulous design and engineering behind this essential debris basin, showcasing the collaborative efforts of various agencies in safeguarding the region from potential water-related disasters.