Big Horn Dike A, also known as Dike A, is a vital earth dam located in Johnson, Wyoming, specifically in the city of Beckton along Cross Creek. Completed in 1964, this privately owned structure serves primarily for irrigation purposes, providing crucial water resources for the surrounding area. With a dam height of 45 feet and a length of 775 feet, Big Horn Dike A has a storage capacity of 5756 acre-feet, making it a significant contributor to water management in the region.

Despite its age, Big Horn Dike A is in fair condition and has a high hazard potential, indicating the importance of regular inspections and maintenance. The dam's spillway, an uncontrolled type with a width of 40 feet, has a maximum discharge capacity of 4756 cubic feet per second. Emergency action plans have been prepared, and the structure meets regulatory guidelines, ensuring that risks are managed effectively. With its critical role in irrigation and water storage, Big Horn Dike A stands as a key asset in supporting the local ecosystem and agricultural activities in the area.

As a noteworthy feature in the water resource infrastructure of Wyoming, Big Horn Dike A serves as an essential component in the management of water resources for irrigation purposes. With its significant storage capacity, fair condition, and high hazard potential, this earth dam plays a crucial role in ensuring water availability and safety for the surrounding community. By meeting regulatory standards and having emergency preparedness measures in place, Big Horn Dike A exemplifies responsible stewardship of water resources in the region, highlighting the importance of sustainable water management practices for climate enthusiasts and water resource professionals alike.