Drainage Design provides technical expertise in the field of hydrology, hydraulics and water resources engineering to all the units of the Intermodal Transportation Division (ITD). ITD is the division of ADOT, which oversees the construction and maintenance of the state highway system.

Our purpose is to provide statewide drainage analysis, design and reviews, in a timely manner, on all projects during the project development process and maintenance activities, in support of the goals set forth in the ADOT mission.