Belknap Creek No. 4 is a private irrigation structure located in Cody, Wyoming, along the Belknap Creek. Built in 1917, this earth dam stands at 23 feet in height and has a storage capacity of 99 acre-feet, with a normal storage level of 74 acre-feet. The dam is primarily used for irrigation purposes, providing essential water supply to the surrounding area.

Despite its age, Belknap Creek No. 4 is assessed to be in fair condition with a low hazard potential. The dam features an uncontrolled spillway with a width of 20 feet and an outlet gate for water regulation. Regular inspections are conducted, with the last assessment taking place in June 2020. The risk assessment for this structure is rated as moderate, indicating a need for ongoing monitoring and potential risk management measures.

Overall, Belknap Creek No. 4 serves as a vital water resource for the region, supporting agricultural activities and water supply needs. With its historical significance and functional purpose, this dam continues to play a crucial role in water management along the Belknap Creek, contributing to the resilience and sustainability of the local ecosystem.