Eastdale #2 is a privately owned earth dam located in Costilla, Colorado, along the Costilla Creek-TR. Built in 1909 for irrigation purposes, the dam stands at 32 feet high and spans 3913 feet in length, with a storage capacity of 5540 acre-feet. The dam has a low hazard potential and was assessed to be in fair condition as of May 2017, with a high risk rating of 2.

Despite its age, Eastdale #2 continues to play a crucial role in water resource management in the region, providing irrigation water for agriculture. The dam is regulated and permitted by the Colorado Division of Water Resources, ensuring its safe operation and maintenance. With a maximum discharge capacity of 5700 cubic feet per second, the dam serves as a vital infrastructure for water supply and flood control in the area.

As climate change impacts water resources and weather patterns, the maintenance and monitoring of dams like Eastdale #2 become increasingly important. With its strategic location and significant storage capacity, Eastdale #2 stands as a testament to the enduring importance of water infrastructure in adapting to a changing climate and ensuring sustainable water management for future generations.