Helms Dam 3623, located in Arapahoe, Nebraska, is a privately owned earth dam completed in 1960 for the primary purpose of flood risk reduction along the TR-Muddy Creek. Standing at a height of 18.4 feet with a length of 235 feet, the dam has a storage capacity of 64.5 acre-feet and serves to protect the surrounding area from potential flooding events. Despite its low hazard potential, the dam's condition assessment in 2017 deemed it to be in poor condition, highlighting the need for maintenance and upgrades to ensure its continued effectiveness in mitigating flood risks.

Managed by the Nebraska Department of Natural Resources, Helms Dam 3623 is subject to state regulation, permitting, inspection, and enforcement to maintain its structural integrity and safety standards. While the dam's last inspection in 2017 revealed its poor condition, its emergency action plan (EAP) status and risk assessment measures are currently not specified. With a drainage area of 0.55 square miles and a surface area of 5.7 acres, the dam plays a crucial role in protecting the local community from potential flood events, underscoring the importance of proper management and maintenance to ensure its continued functionality.

With its location in Gosper County, Nebraska, Helms Dam 3623 stands as a vital infrastructure for flood risk reduction in the region, under the oversight of the Omaha District of the US Army Corps of Engineers. As climate change continues to impact water resources and weather patterns, the maintenance and monitoring of dams like Helms Dam 3623 are essential to safeguarding communities and ecosystems against the threat of flooding. Collaborative efforts between private owners, state agencies, and federal regulators are crucial in ensuring the resilience and reliability of such critical water resource infrastructure in the face of evolving climatic challenges.