Elm Creek 21-B is a vital water resource infrastructure located in Webster, Nebraska, owned and regulated by the local government with design assistance from the USDA NRCS. This earth dam, completed in 1995, stands at a height of 22 feet and serves multiple purposes including flood risk reduction. With a storage capacity of 244 acre-feet and a drainage area of 2.4 square miles, this structure plays a crucial role in managing water resources in the area.

The dam's significant hazard potential is offset by its satisfactory condition assessment as of April 2018, with inspections conducted every 3 years to ensure its structural integrity. Elm Creek 21-B boasts a spillway type and width unspecified, with a maximum discharge capacity of 894 cubic feet per second. As part of the Omaha District, this dam is a key component of flood control measures in the region, highlighting the importance of infrastructure in mitigating the impacts of climate and water resource challenges.

As water resource and climate enthusiasts, the Elm Creek 21-B dam serves as a prime example of the collaboration between local government, federal agencies, and community stakeholders in safeguarding against flooding and managing water resources effectively. With its strategic location on TR-Elm Creek and its crucial role in flood risk reduction, Elm Creek 21-B stands as a testament to the ongoing efforts to address climate-related challenges and ensure sustainable water management practices in Nebraska.