Tarryall Dam, located in Park County, Colorado, is a gravity dam completed in 1929 primarily for recreational purposes. The dam stands at a height of 37 feet, with a total structural height of 70 feet and a length of 263 feet. It impounds Tarryall Creek, creating a reservoir with a maximum storage capacity of 7,217 acre-feet and a normal storage capacity of 1,963 acre-feet. The dam also features a spillway with an uncontrolled type and a width of 180 feet.

Despite its recreational significance, Tarryall Dam poses a high hazard potential and has been assessed as unsatisfactory in condition. Regular inspections are conducted, with the last assessment in March 2020. The dam is under state jurisdiction and regulated by the Colorado Division of Water Resources. The risk assessment for Tarryall Dam is moderate, indicating a need for ongoing risk management measures to ensure the safety and integrity of the structure for both recreational users and downstream communities.

Enthusiasts of water resources and climate will find Tarryall Dam an intriguing subject for study and monitoring. Its historical significance, structural design, and risk profile provide valuable insights into the complexities of managing water resources in the face of changing climate conditions. As a recreational asset in a picturesque location, the dam serves as a focal point for understanding the intersection of human infrastructure, natural ecosystems, and the challenges of maintaining water security in a dynamic environment.