Gibbons No. 4 is a privately owned earth dam located in Brookings, South Dakota, along TR-Deer Creek. Built in 2000 by the USDA NRCS, this dam stands at 26 feet in height and stretches 460 feet in length. With a storage capacity of 168 acre-feet, it serves the purpose of flood control and water conservation in the area. The dam has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment.

Managed by the DENR, Gibbons No. 4 is regulated by the state of South Dakota and undergoes regular inspections for safety and compliance. The spillway, with a width of 60 feet, is uncontrolled, allowing for controlled release of excess water during periods of high flow. Located in a rural area, this dam plays a crucial role in managing runoff and protecting downstream areas from flooding. The risk assessment for Gibbons No. 4 is moderate, with measures in place for risk management but further improvements may be needed to enhance its overall safety and efficiency.

Despite its relatively small size, Gibbons No. 4 is a vital piece of infrastructure in the region, contributing to water resource management and climate resilience efforts. As climate change continues to impact the frequency and intensity of extreme weather events, structures like Gibbons No. 4 play a critical role in safeguarding communities and ecosystems from potential risks and ensuring sustainable water use for future generations.