What is the Maricopa County DOT
The Maricopa County Department of Transportation (MCDOT) plans, designs, constructs, and maintains roadways within the county’s unincorporated areas.
To provide transportation infrastructure and related services to the people within Maricopa County so they can live, conduct business and travel in a safe and clean environment.
MCDOT performs in a collaborative, innovative, efficient and effective manner to deliver safe, cost-effective infrastructure that is responsive to our customers.
Maricopa County has a population of approximately four million, and is the fourth most populous county in the US. With more than nine-thousand square miles it is larger than seven different states. The County is administered by a County Manager who reports to the five member Board of Supervisors elected by the public.
View the Department's Organizational Chart
Meet the MCDOT Management Team
The Maricopa County Department of Transportation (MCDOT) plans, designs, constructs, operates and maintains roadways within the County’s unincorporated areas. MCDOT is responsible for the operation and maintenance of approximately 2,500 miles of roadway, more than 80 bridges (16 of them greater than 400 feet long) and more than 325 culvert crossings, more than 160 signalized intersections and nearly 35,000 traffic signs. MCDOT’s funding is primarily derived from Highway User Revenue Funds, and other federal and state sources. Maricopa County has a population of approximately four million, and is the fourth most populous county in the United States. With more than nine-thousand square miles it is larger than Connecticut, Delaware and Rhode Island combined.
MCDOT’s funding is primarily derived from Highway User Revenue Funds, and other federal and state sources.
Jack M. Lorbeer
Planning Division Manager
Jack Lorbeer has over 30 years of transportation planning experience in city, county, state and metropolitan planning agencies. Prior to assuming the role of Planning Division Manager at MCDOT in 2012, he was the Planning Manager for the Regional Transportation Commission in Reno, Nevada. Jack was also an Associate Traffic Engineer for the City of San Diego, California, a Project Manager for the San Diego Association of Governments, and a Transportation Planner with the Arizona Department of Transportation. He is a member of the Institute of Transportation Engineers and the American Planning Association. Jack earned a Bachelor of Science in Transportation Planning from Arizona State University and a Master of Science in Transportation Planning from California State University at Dominguez Hills.
Edmund C. Williams, P.E.
Engineering Division Manager / Superintendent of Streets
Ed Williams has over 19 years of civil engineering experience. Before joining MCDOT as the Engineering Division Manager in 2012, he worked as a design engineer and project manager on commercial developments and tribal projects for J&K Engineering in Prescott, Arizona. He has also worked at Parsons Transportation Group in Denver, Colorado as well as a number of small local firms in Boulder, Colorado and Prescott, Arizona. Ed earned a Bachelor of Science in Civil Engineering from the Georgia Institute of Technology. He is a member of the American Society of Civil Engineers, Engineers without Borders and the American Public Works Association.
Paul Driver, P.E.
Project Management and Construction Division Manager
Paul Driver has over 28 years of Civil Engineering and project management experience. Before joining MCDOT as the Project Management and Construction Division Manager in 2014, he was the Engineering Supervisor in charge of new project design and construction for the City of Phoenix Street Transportation Department. During his career, Paul supervised planning, design and/or construction for over $700 million in infrastructure. This includes over 50 miles of major roadway, 100 miles of water and sewer lines, 100 miles of storm drains, 11 bridge projects, three buildings and two bus washers. Paul’s proudest achievements are construction management of the award-winning South Mountain Environmental Education Center and the recent completion of the 7.5 mile Sonoran Boulevard project. Paul earned a Bachelor of Science Degree from the University of Colorado. He is a member of the American Public Works Association and is a former student, younger member, and branch officer for the American Society of Civil Engineers.
Jeffrey A. Kramer, P.E., PWLF, CPM, CCM
Roadway Operations Division Manager
Jeff Kramer has over 26 years of transportation engineering and operations experience in the public and private sector. Before becoming the Roadway Operations Division Manager at MCDOT in 2012, he was the Transportation and Infrastructure Market Lead for the southwest region of ARCADIS. Prior to that, he was an Assistant Public Works Director for the City of Chandler, as well as the Transportation Department Director and Deputy City Engineer for the City of Mesa. Jeff earned a Bachelor of Science in Civil Engineering degree from the University of Arizona, and is currently pursuing an MBA in construction management at Chandler University. He is a Public Works Leadership Fellow in the American Public Works Association, a member of the Construction Management Association of America, the American Society for Public Administration, and the American Academy of Certified Public Managers, which awarded him the 2012 Henning Award naming him the National Public Manager of the year.
Nicolaas P. Swart, P.E.
Traffic Management Division Manager
Nicolaas Swart has been the Traffic Management Division Manager since 2006. He oversees all aspects of Traffic Engineering and Intelligent Transportation Systems (ITS). He comes to MCDOT with a strong international engineering background. Before joining MCDOT he worked for Associated Engineering (B.C.) Ltd. in Canada and Ninham Shand, Inc. in South Africa. Nicolaas earned his Bachelor of Science in Civil Engineering and his post-graduate degree in Transportation Engineering from the University of Pretoria in South Africa. He is a member of the State Board of Technical Registration of Arizona, the Association of Professional Engineers and Geoscientists of British Columbia, the Intelligent Transportation Society of Arizona and the Institute of Transportation Engineers. He also serves as the Program Manager for AZTech, a partnership of local agencies integrating transportation systems across jurisdictional boundaries through traffic management and ITS solutions.
Mark Modin, CPA
Financial Services Division Manager
Mark Modin has worked with MCDOT since 1982. As Financial Services Division Manager, he oversees all departmental budgets, Facilities, Article 3 and 5 Procurement, Customer Service and Custodian of Records. Before joining MCDOT, he worked in auditing for the State of Wisconsin Department of Health Services as well as in Financial Services for the Maricopa County Schools Department. Mark earned his Bachelor of Arts in Business Administration with a major in Accounting from Washington State University. He is a member of the Association of Governmental Accountants and holds an Arizona Certified Public Accountant license.
Mike Wilson SR/WA
Real Estate Division Manager
Mike Wilson joined MCDOT in 1997 as the Real Estate Division’s Property Management Supervisor and became the Division Manager in 2002. As Division Manager, he is on both MCDOT and the Maricopa County Flood Control District’s management teams. Prior to joining MCDOT, he worked for the Arizona State Land Department, holding several supervisory positions in the Range, Environment, Trespass Mitigation and Right of Way sections. He has also worked in farming, ranching and commercial cattle feeding management throughout Iowa and Nebraska. Mike earned his Bachelor of Science in Business Administration (Agri-business) from Iowa State University. He holds an Arizona Real Estate License and a Senior Right of Way Associate Designation from the International Right of Way Association.
Information Technology Division Manager
Roseann Osborn-Perez has worked with the County since 1982. She started her career as a Management Information Systems (MIS) Specialist, working her way up to become the Information Technology (IT) Division Manager. Positions she has held include MIS Supervisor, an Assistant Project Manager and Application/Program Manager with the Maricopa County Health Services Department. As IT Division Manager, she is responsible for evaluating and bringing technology to MCDOT business processes to help departments be more efficient. Roseann earned her Bachelor of Science in Business Administration specializing in Management Information Systems with a minor in Computer Science from Glassboro State College in New Jersey.
You can contact MCDOT by either calling the customer service number at the information below or or online
2901 W. Durango
Phoenix, Arizona 85009
(Southwest corner of 29th Ave & Durango)
Phone: (602) 506-8600
Fax: (602) 506-4750