Engineers
Ralph DenHartigh, PE
President of Engineering
Resume
Email: rdenhartigh@jdheng.com
Larry A. Hulst, PE, SECB
Engineer – Principal Consultant
Resume
Email: lhulst@jdheng.com
Donald Akhurst, PE
Senior Project Manager
Resume
Email: dakhurst@jdheng.com
Roland S. Bokma, PE
Senior Project Manager
Resume
Email: rbokma@jdheng.com
Robert P. Klynsma, PE, SE
Senior Project Manager
Resume
Email: rklynsma@jdheng.com
Keith A. Ritsema, PE
Project Manager and Business Manager
Resume
Email: kritsema@jdheng.com
Craig E. Tamlyn, PE
Project Manager
Resume
Email: ctamlyn@jdheng.com
Jason F. Shingledecker, PE
Project Engineer and IT Manager
Resume
Email: jshingledecker@jdheng.com