Speck Dam, located in Glenwood, Iowa, along the Keg Creek, is a privately owned earth dam constructed in 2004 by the USDA NRCS for grade stabilization purposes. Standing at 34 feet high and stretching 220 feet in length, this dam has a storage capacity of 26 acre-feet and serves to control water flow in the area. With a low hazard potential and a condition assessment of 'Not Rated', Speck Dam plays a crucial role in managing water resources in Mills County.

Although not regulated by the state or subject to regular inspections, Speck Dam is designed to withstand potential risks and emergencies, as it does not currently have an Emergency Action Plan in place. The dam's spillway width of 12 feet and maximum discharge of 10 cubic feet per second ensure the safe release of excess water, reducing the risk of flooding in the surrounding area. Despite its unregulated status, Speck Dam fulfills its purpose effectively and contributes to the overall management of water resources in the region.

As a key structure in the Omaha District, Speck Dam plays a vital role in maintaining water quality and controlling erosion along Keg Creek. While it may not be under federal jurisdiction, its construction and design by the USDA NRCS demonstrate a commitment to environmental stewardship and sustainable water management practices. For water resource and climate enthusiasts, Speck Dam stands as a testament to the importance of infrastructure in safeguarding our natural resources for future generations.