HGE has built a team of experts focused on delivering the highest level of design excellence and service to our clients. Principals directly manage and supervise personnel working on projects. Our collaborative cross-discipline approach ensures stronger solutions to our clients on every project we complete.

Click our photos to learn more about each design professional and get to know our team.

Joseph A. Slack, AIA, LEED AP
Joseph A. Slack, AIA, LEED APPresident / Principal Architect
Joe is President of HGE and manager of the architectural division in the Coos Bay office. He is the principal-in-charge for all architectural projects assigned to HGE. Joe has held the position of project architect for a wide variety of building types. His involvement has been in all phases of work including negotiation, programming, preliminary design, public meeting representation, construction document preparation, bidding, and construction administration. He has also performed structural investigations, technical feasibility studies, and site master planning.
Stephen R. Cox
Stephen R. CoxSenior Designer
Stephen Cox, a senior design and project manager, has been employed with HGE Inc., Architects, Engineers, Surveyors, & Planners since 1964. During his tenure, he has worked in every project facet from conception to construction management including: Planning, Surveying, Design, and Inspection. He is experienced in the process and coordination required between permit and funding agencies, owner, public, project design team, governmental agencies, and contractor for completion of a successful project. Since 1972, Stephen has been involved in more than 1,600 municipal improvement projects.
Andrew J. Locati
Andrew J. LocatiProject Architect
Andrew has over 26 years of architectural design and project management experience. He has a broad architectural design background in a diverse variety of projects such as: commercial buildings, historic building restorations and adaptive re-use, waterfront boardwalk design, school district master planning, financial institutions, medical institutions, restaurants, automobile dealership, and numerous residential designs.
Stephanie A. Martell, ASLA, CESCL
Stephanie A. Martell, ASLA, CESCLLandscape Designer/Project Manager/Drafting Technician
Stephanie works on a variety of project types including: educational, medical, commercial, residential multi-family, and landscaping/site improvements. She is an expert on plants in the Pacific Northwest and proficient in many graphic design applications. She is also experienced in storm water design as related to site design, including bioswales, filter basins, and rain gardens. Stephanie handles construction document preparation, preliminary design renderings and other graphic deliverables.
Perry St. John
Perry St. JohnProject Architect / Project Manager
Perry St. John joined HGE Inc. Architects, Engineers & Planners in 2006 as a project architect in the Coos Bay office. He has served as a Project Manager / Project Architect and has had considerable experience in all phases of work for a variety of building types. He has been involved in projects such as: school districts, medical facilities, restaurants, science laboratories, breweries, offices, banking facilities, condominiums, churches, municipal / governmental facilities, and private residences.
Barbara Negherbon, P.E.
Barbara Negherbon, P.E.Project Engineer
Barbara Negherbon recently joined HGE’s engineering team and has more than 19 years of experience working in all phases on a variety of civil engineering projects. She has been involved in the development of site improvements, water distribution systems, water and wastewater treatment facilities, reservoirs, sanitary sewer systems, and pump stations, mostly for municipal clients throughout the state of Oregon. Barbara has completed many engineering studies and reports, including budgetary cost estimates for construction project.
James Daniel
James DanielIntern Architect
James Daniel joined HGE in 2017 and is an emerging professional on the path to licensure. He has prepared AutoCAD and REVIT drawings for preliminary design proposals, design development, and construction document phases of various projects. He has worked as support for HGE’s Architectural Department on all phases of design, and construction administration of various project types.
Susan Ceniza
Susan Ceniza