In the fall of 2000, the District initiated the Laveen Area Drainage Master Plan (ADMP). The study area was bounded by approximately the Salt River on the north, 7th Avenue on the east, South Mountain Park on the south, and the Gila River Indian Reservation on the west. The area had been subjected to frequent flooding hazards, primarily as a result of the inadequate capacity of the original Maricopa Drain, and ponding resulting from inadequate conveyance of substantial storm water. The ADMP was timed to precede impending development.
The ADMP's recommended plan incorporated stakeholder input. The plan consists of a combined system of basins, channels and storm drains, including: (1) detention basins at 51st Avenue and Baseline Road, 51st Avenue and Dobbins Road, 49th Avenue and Elliot Road, 43rd Avenue and Dobbins Road, and 44th Avenue and Carver Road; (2) channels along 67th Avenue from Vineyard Avenue to the Laveen Area Conveyance Channel, and along the Western Canal from 43rd Avenue to 49th Avenue; and (3) storm drains along Elliot Road 49th Avenue to 51st Avenue, along 51st Avenue from Baseline Road to Elliot Road, along Baseline Road from 51st Avenue to the Laveen Area Conveyance Channel, and along approximately the 45th Avenue alignment from Carver Road to Estrella Drive.