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TPD was founded in Oaks, PA in 1989 by our current President, Kevin Johnson, PE. The firm, which was originally comprised of six employees, was founded primarily as a traffic engineering firm with highway design support capabilities. Within a few years, the firm grew significantly, requiring a relocation of the corporate headquarters to our current location in Pottstown, PA. During this time period, the firm was able to expand the areas in which we provided service to include bridge design and environmental permitting while at the same time strengthening our core service areas of traffic engineering and highway design. The firm was able to further expand our capabilities a few years later with the addition of bridge inspection, construction management and construction inspection. In addition to our expansion of services, the firm also expanded geographically, adding additional offices to allow us to better serve our growing client base.

Today, we pride ourselves on being a client-focused, team-oriented firm which operates as “One Company with Multiple Locations”. TPD’s strategically-located network of offices, progressive management structure, continuous investment in technology, and priority on individual accountability enable the firm to provide quality sustainable service, responsiveness, and local knowledge for the benefit of clients and teaming partners.

Years in Business

Our Mission

TPD exists to improve the quality of life for the public.

Our Vision

To be recognized as an industry leader by providing quality engineering and excellent client service, as well as enhancing quality of life for TPDers.

Lou and Bryan - Media Project

Our Values

In pursuit of our vision, the members of TPD share these values:


Commitment to prioritizing diversity and inclusivity, as well as advocating for all community members


Commitment to continuous Professional Development to advance knowledge of current engineering standards, principles and emerging technologies


Dedication to responsiveness


Commitment to fostering a healthy work-life balance


Active engagement in the shaping of policy


Commitment to client and geographic diversification


Commitment to bettering our surrounding communities through charitable work and giving


Dedication to expanding services to meet the needs of the public

Employee Testimonials

They are extremely transparent with their policies and decisions. They have great benefits and they hire good people that help create a fun and stress free work environment. They do excellent work and have a great reputation in the industry. They are growing smartly. They treat employees very well!

This is the most openly communicating and family friendly company I’ve ever worked for. I feel that I am truly part of a strong team here.

Encourages learning at the intern/entry level, provides a friendly and calm atmosphere that promotes work-life balance.

TPD understands that in order to make our clients happy, our staff must be happy. TPD has a great amount of respect for its employees and provides many opportunities.

Amazingly progressive view of the importance of work/life balance. You are allowed to prioritize your work, not left with ‘scraps’ of time to ‘fit in’ to your outside life.

TPD is a family first company, they will go out of their way to accommodate any out of work needs and strives to make coworkers feel like family.

The company is very welcoming to all and want to help all backgrounds achieve their best potential both inside and outside of work.

TPD listens to employees; makes organizational changes to improve the company and create opportunities for staff; trusts employees and give employees flexibility to create their own work/life balance.

I look forward to going to work every day. We are surrounded by incredible people and our work environment allows us to be comfortable and productive. TPD always asks if there is anything they could do to make it even better.