Antelope Dam

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

Antelope Dam, located in Natrona, Wyoming, was completed in 1956 and is owned and regulated by the Bureau of Land Management. The primary purpose of this gravity dam is debris control, specifically on the Antelope Draw river or stream. With a hydraulic height of 20 feet and a structural height of 25 feet, the dam has a normal storage capacity of 42 acre-feet and a maximum storage capacity of 96.9 acre-feet. The dam spans 482 feet in length and covers a surface area of 7.6 acres, serving as a vital resource for water management in the region.

Managed by the Bureau of Land Management, Antelope Dam has a low hazard potential and is assessed to be in fair condition as of the last inspection in July 2017. The dam features an uncontrolled spillway with a width of 2 feet and a maximum discharge capacity of 300 cubic feet per second. While the dam has not been modified in recent years and does not have outlet gates, it plays a crucial role in mitigating flood risks and ensuring water security in the area. Despite its moderate risk assessment rating, Antelope Dam continues to be a key component of water resource management efforts in Wyoming.

With Liz Cheney representing the district, Antelope Dam stands as a testament to the Bureau of Land Management's commitment to safe and effective dam operations. The dam's sturdy buttress and stone core construction, along with its regulated state jurisdiction and inspection protocols, highlight the importance of proactive infrastructure management in the face of changing climate patterns. As a gravity dam designed to withstand the forces of nature, Antelope Dam remains a cornerstone of water conservation and climate resilience initiatives in the region, safeguarding communities and ecosystems for generations to come.