Team

Greg Johnston, P.E.

Mr. Johnston holds a B.S. in Civil Engineering from the University of Maine, has 25 years of Engineering experience, and is a Licensed Professional Engineer in Maine. Mr. Johnston's experience includes commercial and residential development design and permitting, Coastal Engineering, Shoreline Stabilization, Site restoration and construction management, bridge  design, inspection, contract administration, earthwork balancing, storm water management, flood routing, sanitary sewer design, water supply systems, lift stations, and environmental permitting,. He is experienced in managing projects through preliminary design, estimate, final design, approval, permitting, bidding and construction. Mr. Johnston has designed and managed the construction of hundreds of multi disciplined engineering projects nationwide.

Glenn Correll, P.E.

Mr. Correll holds a B.S. in Civil Engineering from the University of Maine and has over 15 years of Engineering experience. Glenn has handled transportation route selection and highway design, coordinated with utility companies, and supervised construction. His project management skill set and experience helps to keep projects moving smoothly.

Frank Vickerson IV

Mr. Vickerson holds a B.S. in Civil Engineering from the University of Maine and has over 13 years of Engineering experience. Frank has extensive experience with computer modeling for managing flood plains and determining the effects of development on surrounding areas. He has helped to design projects from roads to conveyance systems. Frank has work with GF Johnston since 2008 and with the Principal since 2003. Frank can resolve problems quickly and manages the flow of work production and client needs as we know they pop up on an hourly basis.

Jacob Bison

Mr. Bison holds a B.S. in Civil Engineering from Michigan Technological University. Jacob has over 5 years of experience in structural analysis, construction management, and quality inspection. His determination and focus help ensure successful outcomes. Jacob runs our robot total station for topographical survey and construction layout. Jacob's focus enabled him to be on the few true "through hikers" of the Appalacian trail.

Susan Dickinson

Ms. Dickinson is the office manager at G.F. Johnston and Associates. She assists in project management and client communication, and ensures that supporting technologies are kept functional and updated.