About Dunn Engineering Associates





Walter M. Dunn, Jr., P.E. founded Dunn Engineering, P.C. (a predecessor of the current firm) in 1982. During the initial period of the firm’s existence, most of its activity focused on providing traffic impact studies and roadway improvement plans to private developers and local government agencies on Long Island. The firm developed an excellent reputation performing this type of work. It gained many referrals from attorneys, developers and other engineering firms and claimed as clients some Fortune 500 companies such as McDonald’s, United Artists and Warner Brothers. 

By the end of the eighties, the firm had grown to more than a dozen people, including two new partners, Ronald N. Hill, P.E. and Robert A. Reiss, P.E.

At the beginning of the nineties, Dunn Engineering Associates (DEA) offered its traffic engineering expertise to the public sector with notable results. As a prime Consultant, DEA won major contracts with the New York State Department of Transportation (NYSDOT) including a major Intelligent Transportation System (ITS) design and a major corridor planning study. As a subconsultant, DEA also won a NYSDOT contract to operate the INFORM Traffic Management System.

Overall, by the mid nineties, DEA could claim that it was:

  • A nationally known independent ITS Consultant.

  • One of a few consultants with ITS operations experience.

  • One of the two or three leading traffic engineering firms on Long Island, a major player in both public and private sector work.

  • An important NYSDOT consultant, particularly in Planning and Traffic & Safety.

About this time, staff expertise was added in the construction inspection, and structural engineering areas.

In 1997, the acquisition of Norton Brothers, a site planning and surveying firm, further diversified DEA. This acquisition creates synergy between the site planning and traffic engineering business, as each provides referrals to the other. 

Including Norton Brothers Dunn, a staff of over 100 now works under the Dunn umbrella.

Although externally perceived as primarily an ITS, traffic, and transportation specialty firm, DEA has now broadened its skill base and can handle projects in highway design, structural engineering and other civil engineering disciplines.



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66 Main Street, Westhampton, NY 11978