Located in Fountain Hills, Arizona, North Heights (No. 11) is a critical dam managed by the local government for flood risk reduction along Ashbrook Wash. Built in 1976, this earth dam stands at a height of 34 feet and has a hydraulic height of 34 feet, with a structural height reaching 59 feet. With a dam length of 820 feet and a storage capacity of 304 acre-feet, North Heights (No. 11) plays a significant role in mitigating flood hazards in the region.

Despite its satisfactory condition assessment in 2018, North Heights (No. 11) poses a high hazard potential, making regular inspections and maintenance crucial for its continued effectiveness. The dam's uncontrolled spillway, with a width of 250 feet, can handle a maximum discharge of 18,750 cubic feet per second, showcasing its capacity to manage significant water flow during heavy rainfall events. With a moderate risk assessment rating, North Heights (No. 11) remains a key infrastructure for flood control in Maricopa County.

Managed by the Arizona Department of Water Resources, North Heights (No. 11) serves as a vital resource for the local community, highlighting the importance of proactive risk management and emergency preparedness measures. As a focal point for water resource and climate enthusiasts, this dam exemplifies the intersection of infrastructure, environmental stewardship, and public safety in addressing the challenges posed by extreme weather events and changing hydrological conditions.