By establishing the District, the Arizona State Legislature created an entity charged with keeping county residents safe from flood hazards and established an independent funding source for essential projects. The District is a municipal corporation and political subdivision of the State of Arizona. The Maricopa County Board of Supervisors doubles as the District's Board of Directors and receives counsel from the Flood Control Advisory Board comprised of county citizens.

The proposed action is the construction and operation of a new multilane freeway in the metropolitan Phoenix area extending approximately 22 to 24 miles from Interstate 10 west of Phoenix to Interstate 10 southeast of Phoenix. The facility would be the final extension of State Route 202L, an element of the Maricopa Association of Governments' adopted Regional Freeway and Highway System.

A statistical review of the motor vehicle crashes in the State of Arizona for each calendar year. The results are compiled from Arizona Traffic Accident Reports submitted to the Arizona Department of Transportation by state, county, city, tribal, and other law enforcement agencies. Motor Vehicle Crash Facts is an annual report published by the Traffic Engineering Group of the Arizona Department of Transportation. In order to provide the most current information, preliminary data is utilized when necessary. For this reason, previous or future reports may differ slightly and users are encouraged to refer to the latest issue of Motor Vehicle Crash Facts.

The Transit Programs and Grants group within the Multi-Modal Planning Division of the Arizona Department of Transportation is a ten member team that is responsible for administering Federal Transit Administration grants and programs that enhance mobility options in the non-urban areas of the State of Arizona. Transit has five main areas of focus: Rural Transit, Coordinated Mobility, Planning, Safety and Grant Administration.

The Arizona Statewide Transportation Improvement Program identifies statewide priorities for transportation projects. It is a compilation of projects utilizing various federal funding programs and includes highway projects on the cities, counties, and state highway systems, as well as projects in the National Parks, US Forest Service, and Indian Reservation Roads. This is a four-year project list compiled in cooperation with the Federal Highway Administration, Federal Transit Administration, Council of Governments, and the Metropolitan Planning Organizations. Projects are selected for inclusion in the STIP based on adopted procedures and criteria.