Divide Lake, located in Boulder, Wyoming, is a privately-owned reservoir primarily used for irrigation purposes. Constructed in 1954, this rockfill dam stands at a height of 12 feet and has a storage capacity of 1681 acre-feet. Despite its relatively small surface area of 133 acres, it plays a crucial role in water resource management in the region, drawing water from Divide Creek for agricultural needs.

The dam at Divide Lake has a low hazard potential, but its condition assessment has been deemed poor as of October 2019. With an inspection frequency of 5 years, the infrastructure faces moderate risk, although no emergency action plan (EAP) has been prepared yet. The spillway, which is uncontrolled, has a width of 40 feet, ensuring the safe release of excess water. Despite its flaws, Divide Lake remains a key feature in the water infrastructure of Sublette County, Wyoming.

In the realm of water resource and climate management, Divide Lake serves as a valuable case study for assessing the maintenance and risk management of aging dams. Its location in a scenic area with limited drainage area underscores the importance of sustainable water practices. As climate change continues to impact water availability, understanding and addressing the challenges faced by structures like Divide Lake will be essential in ensuring the long-term resilience of water resources in the region.