Started in 1981 as Robert J. Johnson, P.E., JDH has grown into a successful structural engineering firm with a reputation for excellence.  JDH was founded on Christian principals that focus on service, integrity, and teamwork.  This focus has made JDH the structural consultant of choice for many clients.

Because every project has different needs, we tailor a project team to work with you combining our experience, knowledge and abilities with yours. Our relationships go beyond a single project, working together as part of a team.
When you work with JDH, you work directly with an engineer and a principal-in-charge who is responsible for the structural success of your project. This approach results in improved communications, detailed project understanding and ultimately greater project success.

Larry Hulst, P.E.

We understand the impact of the structure on the total project. We are respected for our attention to detail, and our easily understood plans. Without clear structural details, both time and money are wasted. Structure must be integrated into the entire building design process.

When JDH is involved in your project at the beginning, we become a contributing member of your team with a solid understanding of your project's process and intended direction. We can provide project management support, design, quality control services, shop drawing review, and construction advice. We are there for every step of the project from general schematic layout through final design, and our commitment to you doesn't stop until your project is successfully built.

Ralph Den Hartigh, P.E.

Technology is a necessary tool that provides a digital interface and enhances communication. We use technology to develop an environment that advances learning and shares understanding with all team members. Our commitment to keeping current with technology is driven by both our internal needs and responding to our clients' needs.

Robert Johnson, P.E.