Franz #1, also known as Mt. Shavano Hatchery 1, is a state-owned structure located in Chaffee County, Colorado. Built in 1928, this earth dam serves as a Fish and Wildlife Pond primarily for the Arkansas River-OS. The dam stands at a height of 12 feet and has a hydraulic height of 11 feet, with a total structural height of 16 feet. It has a storage capacity of 63 acre-feet, with a normal storage level of 31 acre-feet.

Despite being categorized as having a low hazard potential, Franz #1 is considered to have a high risk level, with a risk assessment rating of 2. The dam does not have a spillway type, but a spillway width of 6 feet is indicated. The last inspection of the dam was conducted in August 1978, with the condition currently rated as "Not Rated". The structure has not been modified in recent years, and emergency action preparedness and risk management measures are not explicitly documented.

For water resource and climate enthusiasts, Franz #1 presents an intriguing case study of a historic earth dam used for fish and wildlife conservation purposes. The dam's location in the picturesque city of Salida, along the Arkansas River-OS, adds to its charm and significance in the region. With its unique design and historical context, Franz #1 is a site worth exploring for those interested in the intersection of water management, conservation, and infrastructure development.