The Upper Deer Creek-Lake Hendricks Watershed (Udclh) 1-C is a dam located in South Dakota, specifically in Brookings County. Constructed in 1970 by the USDA NRCS, this Earth dam stands at a height of 29 feet and has a length of 500 feet, providing a storage capacity of 3,583 acre-feet. The dam regulates the Upper Deer Creek, with a drainage area of 17 square miles and a maximum discharge of 2,751 cubic feet per second.

Managed by the DENR, the Udclh 1-C dam is classified as having a low hazard potential and a moderate risk level. While its condition assessment is currently not rated, the dam is under state regulation and inspection, ensuring its safety and functionality. With a primary purpose not specified, the dam serves as a crucial infrastructure for water resource management and climate resilience in the region, contributing to flood control, water supply, and environmental protection along the Upper Deer Creek.

As an essential structure in the Upper Deer Creek-Lake Hendricks Watershed, the Udclh 1-C dam plays a vital role in managing water resources and mitigating the impacts of extreme weather events in the area. With its regulated operation and state oversight, the dam stands as a key asset in safeguarding the local community against flooding and ensuring the sustainable use of water for agricultural, municipal, and ecological purposes. For water resource and climate enthusiasts, understanding the significance of the Udclh 1-C dam sheds light on the interconnectedness of infrastructure, environment, and resilience in the face of changing climatic conditions.