Boyken No. 2 is a private earth dam located in Campbell, Wyoming, specifically in the city of Arvada along the Upper Draw river. Completed in 1966, this dam serves multiple purposes including fire protection, stock maintenance, and small fish pond support. With a structural height of 33 feet and a hydraulic height of 22 feet, Boyken No. 2 has a storage capacity of 57 acre-feet and a surface area of 4 acres.

Despite its age, Boyken No. 2 is considered to have a low hazard potential and is in fair condition as of the last assessment in 2017. The dam features an uncontrolled spillway with a width of 100 feet, ensuring proper water flow management in case of excess storage. The dam is regularly inspected every 5 years to maintain its structural integrity and ensure safety for the surrounding area.

Overall, Boyken No. 2 provides vital water resource management functions in the region, demonstrating the importance of proper dam maintenance and inspection protocols to mitigate potential risks and ensure continued operational efficiency for fire protection, stock maintenance, and small fish pond support.