The Storm Lake Dredge Spoil Dam - Central Structure in Buena Vista, Iowa, stands as a testament to water resource management in the region. Completed in 2002, this private-owned Earth dam boasts a height of 24 feet and a length of 1667 feet, with a storage capacity of 489 acre-feet. Managed by the Iowa Department of Natural Resources, the dam serves a critical purpose in controlling water flow in the TR-Storm Lake stream.

Despite its significant hazard potential, the dam is currently rated as "Not Rated" in terms of condition assessment. With a moderate risk level of 3, the structure remains under regular inspection, permitting, and enforcement by state regulators. The dam's spillway, designed as uncontrolled with a width of 3 feet, ensures efficient water management during high-flow events. For water resource and climate enthusiasts, the Storm Lake Dredge Spoil Dam is a notable structure that combines engineering excellence with environmental stewardship in the heart of Iowa.