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DENNIS YAP, P.E. PRESIDENT

Before founding DY Consultants in 1991, Mr. Yap worked extensively at large engineering firms, focusing on the planning and development of airport-related facilities throughout the United States. He has successfully completed more than 300 aviation projects and has serviced more than 100 individual airports. His broad range of skills have been utilized at airports of various sizes and service levels.

As President of the firm, Mr. Yap is responsible for managing and directing the Planning, Engineering, Environmental and Administration groups, as well as Client Relations.


Credentials:

Educational Background
Bachelor of Science, Civil Engineering
Polytechnic Institute of New York

Certifications
Registered Professional Engineer in NY, NJ, CT, PA and MA


Professional Memberships:

Airport Consultants Council
New York Airport Managers Association, Member, Board of Directors
American Society of Civil Engineers
Airport Minorities Advisory Council
Aero New Jersey
Southern New Jersey Development Council
 
BILL DEGRAAFF, P.E. DIRECTOR OF TECHNICAL SERVICES

Bill has recently completed an impressive 31 year career with the FAA’s Eastern Region. His extensive background with the FAA will be utilized in his position as Director of Technical Services. His approach with the FAA has and remains the same, to assist and promote aviation. Bill’s positive attitude is consistent with the corporate culture of DY Consultants and will be of great benefit to our staff, our clients, and all agencies that DY Consultants interacts with.


Bill’s extensive background with the FAA can be best illustrated by the positions he has successfully held and the responsibilities associated with each of them. Some of these positions included:


- Eastern Region Runway Safety Program Manager
- Deputy and Acting Manager of the Airports Division
- Programming and Planning Branch Manager, Airports Division
- Safety and Standards Branch Manager, Airports Division
- Paving Engineer, Airports Division
- Construction Supervisory Engineer-Airways Facilities Division

Credentials:

Educational Background
• Bachelor of Science in Civil Engineering.
Polytechnic Institute of Brooklyn, NY.
• M.S. Degree in Civil Engineering
 
ALLAN HAACK SENIOR ADVISOR
Mr. Haack has over 40 years experience in airport and aviation system operations, airport management, business system planning, financial planning, concessions planning, airport lease negotiations, interagency development, and transportation system management as well as project management and coordination of airport planning, design, and construction in all areas of airport development.

Mr. Haack was previously employed for 36 years, at the Port Authority of New York and New Jersey as a senior executive in the Aviation Department, holding positions as Chief/General Manager of Planning and Assistant General Manager of John F. Kennedy International Airport. He was also a former Captain in the U.S. Marine Corps Engineering Office.

Mr. Haack’s expertise in airport planning has been recognized within the US and abroad. He lectured regularly at the Oxford University on Airport Planning and Operations. Domestically, he has lectured on airport planning and operating issues at the University of California, Berkeley and at the Polytechnic Institute of New York. Mr. Haack has also represented the aviation industry as an expert witness to provide testimony before Congress and acts as a spokesperson for the American Society of Civil Engineers on transportation issues.


Credentials:

Educational Background

Bachelor of Science, Civil Engineering and Geology
Duke University

Certifications
 Engineering Management Certification, C.W. Post University
Registered Professional Engineer in MA.

Professional Memberships:

American Society of Civil Engineers: Fellow
Former Chair: Airport Landside Committee
Former Chair: Air Transport. Executive Committee
Former Chair: National Transport. Policy
American Society of Airport Executives
National Society of Professional Engineers
Wings Club, New York City
Society of American Military Engineers
 
ABRAHAM RODRIGUEZ, P.E. SENIOR CIVIL ENGINEER

Abraham Rodriguez, P.E., brings to DY over 39 years of experience in Transportation, Power, Nuclear, Resource Recovery Facilities, Mining, Hydropower, Dam and Water & Wastewater Projects. He has an extensive background in civil engineering, including such projects as the Metro North Railroad, Hudson Line Rehabilitation, New Jersey Transit Maintenance Facilities, etc. Mr. Rodriguez is a licensed Professional Engineer in New York State, and has joined DY Consultants as a senior engineer.

Credentials:

Educational Background

The University of the State of New York,
Education Department
P.E. License

Catholic University of Lima, Peru, Civil Engineering and Construction

Polytechnic Institute Huancayo, Peru, Technical Construction Degree