Hayduk Engineering LLC is a multidisciplinary consulting engineering firm. Our services include civil and site engineering, water and wastewater engineering, stormwater management, transportation/highway engineering, and construction administration services.  Our office is located in Port Jefferson Station on Long Island, New York. We serve clients in both the private and public sector, ranging from homeowner’s associations, property management companies and developers to all levels of government in the public sector.

A respected leader in the region for over 35 years, Hayduk Engineering prides itself in providing insightful, quality, cost effective work product to its clients. We have a distinguished track record of providing tailor made engineering services to suit our client’s needs.




Hayduk Engineering, LLC is a NYS Certified Service Disabled Veteran Owned Business (SDVOB)
and a CVE Verified Service Disabled Veteran Owned Small Business (SDVOSB)

Company News

Featured Project: Suffolk County Vietnam Veterans Memorial Park, Farmingville, NY

Veteran’s Day 2019 marks the 28th anniversary of the completion of the Suffolk County Vietnam Veterans Memorial. Situated on top of Bald Hill, one of the highest points on Long Island, this monument was constructed under the guidance of the Suffolk County Vietnam Veterans Memorial Commission in 1991. Our Principal, Stephen G. Hayduk, P.E., is well known for his role in the development and construction of the Memorial wherein he served as Executive Director of the Suffolk County Vietnam Veterans Memorial Commission, Co-Chairman of the Site and Design Selection Committee, and Engineer-in-Charge of design and construction. He is credited as being the person most responsible for the creation of this landmark monument on Bald Hill in Farmingville, NY. Hayduk Engineering  volunteered civil and site engineering design and construction administration and inspection services for the project. The monument, a sharply sloping pyramid, painted boldly in the colors of our nation’s flag, acknowledges the service and sacrifice of all Vietnam Veterans – those who died, those who were wounded, and the men and women who served.

Our Services

Celebrating Over 35 Years of Engineering Excellence