Prospect, located in Weld County, Colorado, is a privately owned dam with a primary purpose of irrigation. Built in 1914, this earthen dam stands at a height of 44 feet and has a length of 5301 feet, providing storage for 9299 acre-feet of water. The dam sits on Lost Creek-TR river/stream and has a significant hazard potential, although its condition is assessed as satisfactory.

With a drainage area of 9 square miles, Prospect has a maximum discharge capacity of 14700 cubic feet per second and a spillway width of 250 feet. The dam covers a surface area of 398 acres and has a normal storage capacity of 6368 acre-feet. It is regulated and inspected by the Colorado Division of Water Resources, with enforcement and permitting responsibilities falling under state jurisdiction.

For water resource and climate enthusiasts, Prospect presents an intriguing case study in dam infrastructure and management. Its history dating back over a century, combined with its vital role in supporting irrigation activities, highlights the importance of maintaining and monitoring such structures to ensure their safety and effectiveness in water resource management. The data surrounding Prospect provides valuable insights into the complexities of dam regulation and the need for ongoing risk assessment and management in the face of changing environmental conditions.