Snowflake is an earth dam located in Johnson, Wyoming, with a primary purpose of irrigation. Constructed in 2006, this private-owned structure stands at 40 feet tall and stretches 575 feet in length. With a storage capacity of 45 acre-feet, it serves multiple purposes including fire protection, stock, and small fish pond in addition to irrigation.

Situated on the Jasper Draw river, Snowflake has a low hazard potential and is classified as having a fair condition assessment as of August 2018. The dam features an uncontrolled spillway with a width of 30 feet and an outlet gate with a single valve. Despite being privately owned, the state of Wyoming regulates, inspects, and enforces compliance with regards to Snowflake, ensuring its safety and functionality for the surrounding area.

With a moderate risk assessment rating of 3, Snowflake has not had an Emergency Action Plan (EAP) prepared or updated recently. The dam undergoes inspections every 5 years, with the last assessment conducted in August 2018. Its location on County Road in Johnson, Wyoming, makes Snowflake a crucial water resource for irrigation and other related activities, contributing to the water management efforts in the region.