Nathaniel P. Hayes

Project Manager
The decision to become an engineer didn’t come all at once or prior to college. I thought I wanted to be an Architect up until I interned at the City of Pittsburgh Engineering and Construction Department. After that, I focused on structural engineering and reinforced concrete design. After college, at my first job, I migrated into geotechnical engineering after performing construction inspection and material forensic investigations.

At Gateway, I am a Project Manager. In addition to managing a variety of client projects across multiple market sectors, I also provide engineering support for other project managers to fulfill the requirements of their projects for Gateway clients. Previously, I was a Manager, Engineer, and Inspector at Jeff Zell Consultants in Coraopolis, PA and a Geotechnical Division Manager for Allegheny County Public Works in Pittsburgh, PA

Personally, I enjoy trip planning, going on trips, and scheduling time to do nothing.


BA, Architectural Studies, University of Pittsburgh, Pittsburgh, PA
BS, Civil Engineering, University of Pittsburgh, Pittsburgh, PA

Professional Certifications

Professional Engineer, Maryland (2022), #59760 Expires 8/11/2024
Professional Engineer, Missouri (2022), #PE-2022034532 Expires 12/31/2024
Professional Engineer, New Mexico (2021), #26817 Expires 12/31/2023
Professional Engineer, North Carolina (2022) #054725 Expires 12/31/2023
Professional Engineer, Ohio (2011), #PE75778 Expires 12/31/2023
Professional Engineer, Pennsylvania (2008), # PE076455 Expires 09/30/2023
Professional Engineer, West Virginia (2009), #18249 Expires 12/31/2024

Professional Affiliations

Engineers Society of Western Pennsylvania, ESWP
American Society of Civil Engineers, ASCE