Lance No 1 is a private earth dam located in Avenue City, Missouri, along the TR-Kellog Branch. Completed in 1992, this dam serves the primary purpose of grade stabilization and stands at a height of 29 feet with a length of 350 feet. With a storage capacity of 22 acre-feet and a drainage area of 51.2 square miles, Lance No 1 plays a crucial role in managing water resources in the region.

Despite its low hazard potential and moderate risk assessment rating, Lance No 1 has not been fully assessed for its condition or emergency preparedness. The dam features an uncontrolled spillway and lacks outlet gates, reflecting its simplistic design and operation. While it is not regulated or inspected by the state, the dam remains an essential structure for maintaining water levels and preventing erosion along the TR-Kellog Branch.

For water resource and climate enthusiasts, Lance No 1 offers an intriguing case study of a privately owned earth dam in rural Missouri. Its historical significance, design characteristics, and operational details provide valuable insights into the role of small-scale dams in water management and environmental protection. As discussions around sustainable water infrastructure continue to evolve, Lance No 1 serves as a reminder of the diverse and interconnected ways in which dams contribute to our ecosystem.