Fossil Dam

• Overview
• Reservoirs
• Rivers
• Fishing
• Boat Ramps
• Explore

Fossil Dam, located in Natrona, Wyoming, serves as a vital debris control structure along the Fossil Draw river. Owned and regulated by the Bureau of Land Management, this gravity dam stands at a height of 35 feet and was completed in 1966. With a primary purpose of debris control, Fossil Dam has a normal storage capacity of 19 acre-feet and a maximum discharge of 230 cubic feet per second.

Despite being classified as having a low hazard potential, Fossil Dam's condition assessment is marked as unsatisfactory. The dam has a moderate risk rating and undergoes inspections every five years, with the last inspection conducted in 2017. With an uncontrolled spillway type and no outlet gates, the dam presents a moderate risk level that necessitates ongoing risk management measures to ensure public safety and environmental protection.

Water resource and climate enthusiasts will find Fossil Dam's design and functionality intriguing, as it plays a critical role in managing debris and maintaining water flow along the Fossil Draw river. The dam's location within a federal jurisdiction underscores the importance of proper regulation and inspection to address any potential risks associated with its operation. As a key component in the region's water infrastructure, Fossil Dam continues to be a focal point for monitoring and maintaining its structural integrity for long-term sustainability.