Rainbow Detention Basin Dam, located in Las Vegas, Nevada, is a crucial structure designed for flood risk reduction along the Las Vegas Wash-TR. Completed in 2002, this earth dam stands at a height of 41 feet and has a hydraulic height of 36 feet, with a structural height of 6 feet. The dam spans a length of 1000 feet and has a storage capacity of 134 acre-feet, making it an essential component in managing stormwater in the region.

With a significant hazard potential and a fair condition assessment as of March 2020, Rainbow Detention Basin Dam is subject to regular inspections to ensure its structural integrity. The dam boasts an uncontrolled spillway type with a width of 138 feet, allowing for the release of excess water during times of heavy rainfall. Additionally, the dam is equipped with one other controlled outlet gate for efficient water management.

Despite its moderate risk assessment, Rainbow Detention Basin Dam plays a vital role in protecting the surrounding areas from potential flooding events. This state-regulated structure, monitored by the Nevada DWR, serves as a testament to effective water resource management and climate resilience efforts in the region.