Spring Creek Dam 1118, located in Sioux, Nebraska, is a privately owned irrigation dam designed by the USDA NRCS and completed in 1952. With a structural height of 31 feet and a drainage area of 1.5 square miles, this earth dam serves the primary purpose of irrigation along Spring Creek. The dam has a maximum storage capacity of 38 acre-feet and a normal storage level of 26 acre-feet, with a hazard potential rated as low and a fair condition assessment as of the last inspection in November 2017.

Managed by the Nebraska Department of Natural Resources, Spring Creek Dam 1118 is subject to state regulation, permitting, inspection, and enforcement. The dam has a maximum discharge capacity of 830 cubic feet per second and is located within the jurisdiction of NE DNR. Although the dam does not have a spillway, it remains a vital infrastructure for agricultural water management in the region, ensuring a reliable water supply for the surrounding area. The dam's location at NWS7T32R55W, near Ardmore SD, underscores its importance in supporting local farming and irrigation needs while maintaining a low risk profile.

Despite being privately owned, Spring Creek Dam 1118 plays a crucial role in water resource management in Nebraska, particularly for irrigation purposes. With a history dating back to the early 1950s, the dam continues to provide essential water storage and distribution services for the local community. With a designated emergency action plan and regular inspections, the dam is well-maintained and monitored to ensure its structural integrity and functionality for years to come. As part of the broader water infrastructure in the area, Spring Creek Dam 1118 exemplifies the importance of sustainable water resource management in the face of evolving climate challenges.