Lewis, also known as Carey No. 1, is a privately owned irrigation dam located in Laramie, Wyoming, along the Horse Creek. Constructed in 1908, this earth dam stands at 26 feet tall and spans 1100 feet in length, with a storage capacity of 244 acre-feet. The dam's primary purpose is irrigation, serving the surrounding agricultural lands in the region.

Despite being classified as having low hazard potential and fair condition assessment, Lewis is regulated and inspected by the Wyoming State Engineer's Office. The dam features an uncontrolled spillway with a width of 90 feet and three slide gates for outlet control. The last inspection in April 2020 indicated a moderate risk level, prompting the need for continued risk management measures and regular monitoring.

Located in Congressional District 00 of Wyoming, Lewis plays a crucial role in water resource management and agricultural sustainability in the area. With its historical significance and ongoing maintenance efforts, this dam serves as a vital infrastructure component for water supply and irrigation purposes in the region, highlighting the intersection of water resource management and climate resilience.