Lance Creek No. 2 is a privately owned earth dam located in Lance Creek, Wyoming, designed for irrigation purposes. Completed in 1966, this dam stands at a height of 20 feet and has a storage capacity of 171 acre-feet. Despite its low hazard potential, the dam's condition has been assessed as poor, with a moderate risk rating of 3.

The structure features an uncontrolled spillway with a width of 60 feet and is equipped with a single slide (sluice gate) outlet gate. While it has not been modified in recent years, the dam undergoes inspections every five years, with the last assessment conducted in June 2018. The surrounding area covers a surface area of 13 acres, with the Lance Creek serving as the primary water source for this irrigation system.

Water resource and climate enthusiasts interested in the management and maintenance of dams will find Lance Creek No. 2 an intriguing case study due to its historical significance and ongoing challenges in ensuring its structural integrity and safety. As part of the larger network of water infrastructure in Wyoming, this dam provides valuable insights into the complexities of balancing water supply needs with environmental considerations in the face of changing climate conditions.