Big Cottonwood Allot 2 Dam, located in Dawes, Nebraska, is a Federal-owned structure primarily used for fire protection, stock, and small fish pond purposes. Constructed in 1936, this Earth-type dam stands at a height of 12 feet and spans 491 feet in length. With a storage capacity of 66 acre-feet and a normal storage of 22 acre-feet, the dam plays a crucial role in managing water resources in the region. Situated along the TR-Big Cottonwood Creek, this dam is regulated by the Nebraska Department of Natural Resources and undergoes regular inspections to ensure structural integrity.

Despite its low hazard potential, the dam's condition assessment reveals a poor rating as of December 2019. The inspection frequency is set at 10 years, with the last inspection conducted in December 2019. Although there are no associated spillways or outlet gates, the dam serves as a vital component for water management in the area. With its historical significance and functional importance for both water resource management and environmental conservation, Big Cottonwood Allot 2 Dam stands as a testament to the intersection of human engineering and natural ecosystems.