Nelson is a private irrigation dam located in Louviers, Colorado, along Rainbow Creek. Built in 1953, this earth dam stands at a height of 30 feet and has a length of 164 feet, providing storage for 22 acre-feet of water. With a primary purpose of irrigation, Nelson serves as a vital resource for water management in the region.

Despite its age, Nelson is in fair condition with a low hazard potential. Regular inspections have been conducted, with the last assessment in 2007 revealing a structurally sound dam. With a maximum discharge capacity of 177 cubic feet per second, Nelson plays a crucial role in managing water flow and storage for agricultural purposes in Douglas County.

Given its significance in the local water resource infrastructure, Nelson stands as a testament to the importance of maintaining and monitoring dams for effective water management. As climate change impacts become more pronounced, ensuring the safety and functionality of structures like Nelson will be essential in safeguarding water resources for future generations.