Who We Are

ASDi was originally founded in 1984 by Robert Gravano and Robert Dack, under the name of Gravano-Dack and Associates.  Since then, we have grown steadily to meet the needs of our clients and in 1997 the name was officially changed to Advanced Structural Design, Inc. We have more than 30 years of experience in structural design across a multitude of building industries and locations, and draw upon that experience throughout the design process. Our team is dedicated to going above and beyond to meet the needs of our clients on each and every project we are a part of.

What We Do

Our goal is to be a valuable asset to any project design team.  We have the expertise to tackle projects of any size and complexity, and take pride in providing structural designs which are safe, cost-effective, and within budget.  We enhance the design process by working with the entire design team to ensure our projects are fully coordinated, helping to minimize potential issues during construction.

ASDi’s versatile and forward-thinking team embraces all the latest technologies in structural design and construction.  We are well-versed in 3D modeling and BIM technologies, including Autodesk Revit, and have been delivering projects using BIM since 2011.  We are firmly invested in continually growing our BIM capabilities, knowing that BIM brings tight coordination and accurate documentation – saving time and money during construction.


We are able to provide our clients with a wide range of structural engineering services.   From full structural design of new facilities to the evaluation and retrofit of existing structures, ASDi has the experience and capability to tackle any project.  Please see our list of services below for more information.

Structural Analysis and Design

Construction Documents

Seismic Evaluation and Retrofit

CAD/BIM Drafting

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  • Construction Administration
  • Consultations
  • Plan Checking
  • Peer Review

Our Team

Three Principal Engineers currently lead ASDi: Craig Hiett, Jack Brewer, and Mark Bozzo – all of whom are licensed in the state of California.  Our Principals personally oversee every project in a hands-on manner to ensure the highest quality in design.  Our two founding principals, Robert Gravano and Robert Dack, continue to contribute to the firm.  Evan Gray and Andrew Plescia joined the team in 2017.  We also have a highly skilled CAD/Revit staff to aid in the preparation of our structural drawings.


Robert J. Gravano, SE

Founding Principal

Robert E. Dack, SE

Founding Principal

Evan H. Gray, PE

Project Engineer

Andrew Plescia

Staff Engineer