The Tuacahn Wash Lower Detention Basin in Santa Clara, Utah, stands as a critical infrastructure for flood risk reduction, completed back in 1919. This earth dam structure boasts a hydraulic height of 24 feet and a structural height of 29 feet, with a capacity to store up to 145 acre-feet of water. Situated along an unnamed tributary to the Santa Clara River, this basin covers a drainage area of 7.15 square miles and serves as a safeguard against potential high hazard risks, with a satisfactory condition assessment as of April 2013.

Managed by the Utah Division of Water Rights, this detention basin is regularly inspected to ensure its operational readiness and regulatory compliance. With a high hazard potential, the facility is equipped with emergency action plans and protocols to mitigate risks and ensure public safety in the event of a flood event. Its strategic location and design make it a crucial component of the local government's water resource management efforts, underscoring the vital role it plays in protecting the surrounding community from potential flood damages.

As a testament to its importance in flood risk reduction, the Tuacahn Wash Lower Detention Basin remains a key piece of infrastructure in Washington County, Utah. With a focus on safeguarding the city of Santa Clara from potential inundation, this earth dam structure serves as a vital defensive barrier against the impacts of extreme weather events and water resource fluctuations. Enforced by state regulatory agencies and subject to regular inspections, this basin exemplifies the proactive approach taken towards climate resilience and water management in the region, underscoring its significance in ensuring the safety and well-being of local residents and properties.