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Responsive. Honest. Accurate.

At DiDonato Associates, our Responsiveness is what sets us apart from our competitors. With our Principals/Owners actively working on projects, our Clients are assured that any questions or issues that come up will be answered quickly. Our responsibility is to our Clients to provide timely and cost-effective services for the completion of a successful project.

In business since 1965, DiDonato Associates has served the engineering and architecture needs of clients of every kind, from municipalities, airports and public highway projects to universities, private developers, and sports arenas.

Working throughout Western New York state, we continually build on our reputation for exceptional performance and responsiveness in delivering professional services including: Civil & Structural Engineering, Architectural Design, Design Support and Construction Administration, Aviation Design, Transportation Engineering, Safety Inspections, and Special Services.

We bring to our Clients a great depth of expertise with a higher level of Client-focused service to give you the right solutions for even your greatest challenges. Put the experience of DiDonato Associates to work for you.


Roadway Rehabilitation/Complete Streets

DiDonato Associates provides design for the rehabilitation of roadways including pavement reconstruction, sidewalks & curbs, stormwater management & drainage, pavement marking, pedestrian crosswalks, streetscaping.  We also have experience with Complete Streets including traffic calming, bicycle paths, ADA accessibility, and public transportation elements. The above shows Sunset Drive Rehabilitation.


Airport Infrastructure, Construction Contractor Quality Control Plan Development

DiDonato Associates provides planning, design, and construction services for all facets of airfield, including runways, taxiways, aprons, grading, and drainage. Our aviation group has over 25 years of experience planning and designing the best solutions for our clients, delivering professional services ranging from preliminary planning, feasibility studies, design, development of contract documents, construction management, and field supervision. The above shows Airside Pavement Maintenance at BNIA.



Our top-notch Structural Department specializes in two main areas including Building/ Foundations and Bridges. Building work includes design of structures for new buildings & additions, analysis & repair of existing structures, and foundations for electronic signage & billboards/scoreboards.  Our Bridge group performs bridge inspections/evaluations, bridge rehabilitation/repair, and bridge replacements.  The above shows Aurora Street Bridge Rehabilitation.

Architectural Design


From design of new buildings and additions to renovation of existing facilities, DiDonato Associates’ Architectural Department has provided design services for municipal buildings, office buildings, sports & park facilities, educational facilities, and commercial/ retail facilities.  This work has included historical buildings, professional sports facilities, college facilities, transportation facilities, and park facilities. The above shows the new NSC E-Tech Learning Landscape.


Bidding/Design Support/Inspection/Administration

During Construction, DiDonato Associates can provide bid assistance, design support services, construction administration tasks, and construction inspection/monitoring services.  Our Construction Services team is made up of highly qualified and experienced personnel who help keep projects on track and within budget, and ensure the project is constructed as designed. The above shows the UB Center for the Arts Exterior Rehabilitation Construction.