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IAI - Board of Directors

Frank Holzmann, P.E.

Frank is responsible for ensuring client satisfaction with project delivery, quality, timeliness, and budget – from project start to project finish. Works with clients on additional work opportunities within the contract and resolve any concerns or issues that may arise during a project.

Frank was the former TxDOT CDA Program Director and Interim Division Director with over 30 years of experience in all aspects of transportation design, construction, planning, management and alternative project delivery (including Design Build and Concession).


We are a professional services firm committed to expanding, enhancing, and preserving the built environment.

We offer a full range of planning, engineering, and construction services to both public and private clients across a broad spectrum of industries and geographies.

Where did we come from?

Volkert traces its roots back to 1925 in New Orleans, Louisiana, where a family-run engineering corporation called Doullut & Ewin was organized. In the fifties, the firm was named Ewin Engineering and moved to Mobile, Alabama. It was there that an enterprising engineer named David G. Volkert acquired the firm and put his own stamp on it — a company dedicated to “serving clients with quality, innovation, and honest value.”


Volkert has had a part in some of the most significant infrastructure projects in the United States throughout the 20th century, from designing the longest continuous bridge over water (an achievement for which the Lake Pontchartrain Causeway still holds the world record) to planning much of the country’s interstate system.

Where are we going?

In the 21st century, Volkert has accelerated its growth to become a nationally active, award-winning professional services firm, broadening its focus to encompass both the natural and built environments.

We are committed to providing clients with creative solutions for a sustainable environment, including improvements to infrastructure, the environment, and natural resources. We strive to deliver the three principles of sustainability—environmental, social, and economic—in our work and in our business operations.

Now with over 1,100 employees in more than 40 offices, Volkert consistently ranks among the top 100 design firms in the nation (as reported annually by Engineering News-Record).

But some things never change: the commitment to serve, the drive to innovate, and the passion to excel.

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