J. O. Smith and Sons #1 is a privately owned Earth dam located in Huerfano, Colorado, with a primary purpose of irrigation. Built in 1964, this dam stands at a height of 25 feet and has a storage capacity of 43 acre-feet. With a surface area of 4 acres and a drainage area of 3 acres, this dam plays a crucial role in providing water for irrigation, fire protection, stock, and small fish ponds in the area.

Managed by the Natural Resources Conservation Service, J. O. Smith and Sons #1 has a low hazard potential and is assessed to be in fair condition as of the last inspection in 2013. The dam has a moderate risk assessment rating, with a controlled unregulated spillway and a maximum discharge of 4909 cubic feet per second. The surrounding Cucharas River-TR watershed benefits from the water storage and management provided by this dam, contributing to sustainable water resource management in the region.

Overall, J. O. Smith and Sons #1 serves as a vital infrastructure for water resource management in Colorado, ensuring the availability of water for various purposes while maintaining a low hazard potential. With its strategic location and efficient design, this Earth dam continues to play a significant role in the irrigation and water supply network of the area, demonstrating the importance of sustainable water resource management in the face of changing climate conditions.