
Stephen Tolar, P.E., S.E.
Holloway, Updike and Bellen, Inc., President
B.S. Civil Engineering - Oklahoma State University, 1997
Licensed Professional Engineer in Oklahoma.
OK PE No. 20679
AR PE No. 18116
Stephen Tolar is President of HUB Engineers and has over 20 years of experience as a consulting engineer. He specializes in water and wastewater facility design and construction. Stephen has completed over one hundred water and wastewater improvements projects across the state.

Jay Updike, P.E.
Holloway, Updike and Bellen, Inc., Vice-President
B.S. Civil Engineering – University of Oklahoma, 1974
Licensed Professional Engineer in Oklahoma.
OK PE No. 1978
Jay Updike is a Vice-President of HUB Engineers and offers over 45 years of experience as a design engineer and consultant. He is well renowned in the State of Oklahoma for his expertise in water and wastewater engineering and implementation.

Greg Armstrong, P.E.
Holloway, Updike and Bellen, Inc., Vice-President
B.S. Civil Engineering - Oklahoma State University, 1995
Licensed Professional Engineer in Oklahoma.
OK PE No. 20883
Greg Armstrong has over 25 years of experience in civil engineering and serves as Vice-President for HUB Engineers. His expertise ranges from roadways, railways, commercial sites, to water lines, sewer lines, pump stations, lift stations and subdivisions. He has the knowledge and understanding of what it takes to create a successful project.

Wes Stewart, P.E.
Holloway, Updike and Bellen, Inc., Principal
B.S. Civil Engineering – Oklahoma State University, 2004, Licensed Professional Engineer in Oklahoma.
OK PE No. 24031
Wes is a Senior Project Manager for HUB Engineers with over 15 years of transportation design experience. His background includes highway and residential design, as well as bridge, stormwater, and utility solutions. Wes has completed numerous Oklahoma Department of Transportation, bridge replacement, and Tribal roadway projects in eastern Oklahoma

Dale Seaton, P.E.
Holloway, Updike and Bellen, Inc., Principal
B.S. Civil Engineering - Oklahoma State University, 2008
Licensed Professional Engineer in Oklahoma.
OK PE No. 27288
Dale started with HUB Engineers in 2009 and now operates as a Senior Project Manager. He has worked in multiple areas of civil engineering services including surveying, street and pavement design, stormwater analysis and implementation, utility coordination and design, lift station and force main design, and site development.

Jason Ray
Holloway, Updike and Bellen, Inc., Principal
B.S. Construction Management, Oklahoma State University, 1994.
M.S. Civil Engineering, Oklahoma State University, 1996
Jason Ray is a Senior Project Manager with HUB Engineers and has provided design, construction, and inspection services on countless municipal projects in the Tulsa Metropolitan Area. Having over 25 years of construction and engineering experience, his focus has included, but is not limited to water & wastewater solutions, transportation, and site development.

Sam Stratton, P.E.
Holloway, Updike and Bellen, Inc., Project Engineer
B.S. Biosystems Engineering - Oklahoma State University, 2018
M.S. Environmental Engineering - Oklahoma State University, 2021
Licensed Professional Engineer in Oklahoma.
OK PE No. 33398
Sam Stratton is a Professional Engineer with HUB Engineers. Sam has experience in water & wastewater, utility, transportation, and stormwater design. Additionally, he has experience in construction project management and onsite inspections. Sam has assisted in projects for multiple clients including: Tulsa, Muskogee, Collinsville, Broken Arrow, and more.

Charles Chastain, PLS
Holloway, Updike and Bellen, Inc., Director of Surveying
Registered Professional Land Surveyor, State of Oklahoma 1352
Registered Professional Land Surveyor, State of Kansas 1320
Registered Professional Land Surveyor, State of Arkansas 1847
Charles Chastain is the Director of Surveying for HUB Engineers and has over 30 years of experience as a Professional Land Surveyor. Charles oversees property boundary surveys and preparation of legal descriptions, topography surveys and mapping, construction staking and layout including residential, utilities, transportation projects in Oklahoma and Arkansas.
Our Mission
Founded in 1971 by Max Holloway, Holloway Engineering was created as a firm focused on providing water and waste water design solutions to the state of Oklahoma. By 1980, the now Holloway, Updike & Bellen, Inc. (HUB), had expanded to offer a full spectrum of engineering services including surveying, transportation design, storm water solutions, and construction services. Since that time, HUB has designed and overseen the successful completion of countless projects across the state. Because of our qualified staff and design process, HUB is able to handle jobs of any magnitude. Whether it be a culvert replacement, or treatment facility, HUB treats every project with the upmost attention to detail and performance.
Through dedication to our craft, HUB earns considerable repeat business from clientele. We consider this a compliment and count it a duty to never take this trust for granted. Our office understands each scope presents a unique set of challenges and strives to make every project better than its predecessor. This commitment to service will continue to be our focus as consulting engineers.