Double L is a privately owned irrigation dam located in Platte, Wyoming, along the Richeau Creek. Completed in 1965, this earth dam stands at a height of 26 feet and has a storage capacity of 205 acre-feet. With a spillway width of 300 feet and a low hazard potential, Double L is crucial for managing water resources in the region and ensuring a stable water supply for agricultural purposes.

Operated by the Wyoming State Engineer's Office, Double L is subject to regular inspections and maintenance to ensure its structural integrity and functionality. With a moderate risk assessment rating of 3, the dam is equipped with one valve outlet gate for water release. Despite its age, Double L continues to play a vital role in water management and irrigation within the community, highlighting the importance of ongoing monitoring and risk management measures in the face of changing climate conditions.

Situated in Congressional District 00 of Wyoming, Double L serves as a key example of infrastructure that supports local agriculture and water management efforts. With Liz Cheney (R) as the representative for the area, the dam's presence underscores the need for sustainable water resource management practices and the importance of maintaining critical infrastructure to adapt to the challenges posed by climate change.