Cottonwood is a privately owned earth dam located in Uinta, Wyoming, with a primary purpose of irrigation. Completed in 1919, this structure stands at 13 feet high and spans 845 feet in length, holding a storage capacity of 124 acre-feet. The dam, primarily constructed of stone and soil, serves the Cottonwood and Three Mile Creeks in the Fort Bridger Military Reservation area. Despite its low hazard potential and fair condition assessment, the dam is subject to regular state inspection, enforcement, and permitting to ensure its safety and functionality.

Managed by the Wyoming State Engineer's Office, Cottonwood dam features an uncontrolled spillway and outlet gates. With a moderate risk assessment rating of 3, the dam has not undergone any modifications in recent years and is equipped to handle potential emergencies. The structure's risk management measures are currently not specified, but it is noted that the inspection frequency is set at 5 years. Owned by a private entity, Cottonwood dam represents a vital irrigation resource in the region, contributing to the agricultural landscape while maintaining a relatively low risk profile for its operators and surrounding community.