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The Pima County Regional Flood Control District plays a vital role in protecting Pima County residents from flooding and erosion hazards as well as protecting riparian habitat and providing trails. As a regional authority, our projects cross jurisdictional boundaries and occur within the City of Tucson, the Town of Oro Valley, the Town of Marana, and the Town of Sahuarita. Projects include bank stabilization, restoration, floodplain mapping, detention and retention basins, bridges, drainage improvements, and river parks among others. Since the District's inception in 1978, over 250 major flood control improvements throughout the community have been constructed.