Harrington, also known as Enl of 4629r, is a privately owned earth dam located in Greybull, Wyoming, along the Manny Draw river or stream. Completed in 1974, this irrigation dam stands at a height of 30 feet with a hydraulic height of 25 feet and a length of 1817 feet. It has a storage capacity of 2126 acre-feet and a surface area of 185 acres, serving the purpose of irrigation for the surrounding area.

Despite its significant hazard potential and poor condition assessment, Harrington is regulated, permitted, inspected, and enforced by the Wyoming State Engineer's Office. The dam features an uncontrolled spillway with a width of 100 feet and an outlet gate valve - 1. With a moderate risk assessment rating of 3, there are no emergency action plans in place, highlighting a need for improved risk management measures for this essential water resource infrastructure.

Located in Big Horn County, Harrington plays a crucial role in water management and agricultural activities in the region. As climate change continues to impact water resources, it is essential to ensure the safety and efficiency of dams like Harrington to sustainably meet the irrigation needs of the community while mitigating potential risks and adapting to changing environmental conditions.