Salt Lake County Upper I-9 is a privately owned dam located in Holladay, Utah, with a primary purpose of flood risk reduction. Completed in 1990, this earth dam stands at 6 feet high with a hydraulic height of 3 feet and a length of 2100 feet. It has a storage capacity of 35 acre-feet, with a normal storage level of 17 acre-feet. The dam is regulated by the Utah Division of Water Rights, and inspections are conducted regularly to ensure its safety and compliance with state regulations.

The dam is classified as having a significant hazard potential, although its condition assessment is currently listed as "Not Rated." The last inspection was conducted in May 2003, with a frequency of every 2 years. While an Emergency Action Plan (EAP) has not been reported, the dam meets state permitting and enforcement requirements. With a prime location for flood risk reduction in Salt Lake County, this dam plays a crucial role in protecting the surrounding area from potential inundation events.

Overall, Salt Lake County Upper I-9 is an essential structure for managing flood risks in the region, with a focus on safety and compliance with state regulations. Its strategic location and storage capacity contribute to its effectiveness in mitigating potential flooding events in the area. As climate change continues to impact water resources, dams like Upper I-9 will play a vital role in safeguarding communities and infrastructure from the risks associated with extreme weather events.