ABOUT US

HMT is a small business owned and operated by lifetime residents of New Braunfels who can commit every resource to your project.

HMT Engineering & Surveying in New Braunfels & San Antonio, Texas

Building Relationships and Futures that Glorify God

We have surveyed thousands of acres in the surrounding area and counties, have over 45 years’ worth of collected data of the terrain, and our familiarity with the municipalities’ design requirements and standards is unmatched.

HMT is personally invested in the timely, successful completion of your project and commits to collaborative and communicative project management.

OUR LEADERSHIP

Thor Thornhill

Owner/CEO

Mr. Thornhill has a wide range of experience with land development...

Stephen Hanz, P.E.

Owner/COO

Mr. Hanz has enjoyed a career in civil engineering which has ...

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Thor Thornhill, RPLS

Owner/CEO

Mr. Thornhill has a wide range of experience with land development...

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Stephen Hanz, P.E.

Owner/COO

Mr. Hanz has enjoyed a career in civil engineering which has ...

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Chris Van Heerde, P.E.

Managing Partner

Chris has extensive experience with different municipalities including the City of Seguin. His project management experience includes stormwater distribution, wastewater collection and drainage systems, and streets for residential and commercial subdivisions. He has also managed floodplain permitting with LOMRs and CLOMRs for various projects.

Chris’ project management experience is extensive, including construction and bid administration, QA/QC, site monitoring, and construction inspections.

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Chris Crim, P.E.

Vice President

Chris is a seasoned professional who has been working in the field for more than ten years. He brought his talents to HMT in 2015. Chris has designed numerous commercial, multi-family, civic, and residential developments both domestically and internationally. 

Chris' extensive experience with project management and team building has provided his clients the advantage of projects delivered on time and within budget. 

Joseph Sandoval, P.E., MBA

Joseph Sandoval, P.E.

Senior Project Manager

Joseph has extensive experience with the City of New Braunfels. His project management experience includes roadway design, water and wastewaster, general civil engineering and stormwater for residential and commercial subdivisions. He has managed LOMRs and CLOMRs for various projects. Joseph's experience includes muicipal and public works, commercial, and residential developments. 

Joseph loves learning and infusing best practices into his projects. He is currently pursuing a doctoral degree into addition to his MBA.

 

Zoe Jasso, Senior Project Manager at HMT Engineering & Surveying

Zoe Jasso, P.E.

Senior Project Manager

Zoe leads the San Antonio office with more than 10 years of experience in residential, commercial, and municipality work. Zoe’s experience includes developing residential and multi-family projects, but also encompasses commercial strips and restaurant chains, like What-a-Burger, as well as Circle K and other gas station, among other commercial projects. She has worked in more than 15 cities and municipalities and brings her expertise to each project.

Zoe participated in the Urban Land Institute (ULI) mentorship project from 2021-2023 and the RECSA Leadership program in 2022-2023.

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Dorothy Taylor, RPLS

Survey Department Manager

Dorothy is the Survey Department Manager at HMT Engineering and Surveying with over 18 years of surveying experience including production building, and engineering design for residential & commercial development she has developed GIS mapping solutions for political subdivision creations including Water Control Improvement Districts and Municipal Utility Districts.

Dorothy also has experience in the environmental, energy, and mining industries. She has worked with attorneys to investigate and resolve land disputes. She has been a guest lecturer on Surveying at Texas State University and she currently serves as a member of the Survey Advisory Committee to the Texas Board of Professional Engineers and Land Surveyors. Dorothy understands the geospatial needs of engineering design projects and provides expert land surveying and GIS Support to meet those needs.

Jessica Calhoun, P.E., CFM

Water Resources Manager

Jessica has worked on a wide variety of water resource projects. She focuses much of her practice on flooding and reclamation analysis and water quality assessment for projects in sensitive areas.

Jessica has also led various projects including Federal Emergency Management Agency (FEMA) Conditional Letters of Map Revision (CLOMR) and Letters of Map Revision (LOMR), Organized Sewage Collection Systems (SCS), Water Pollution Abatement Plans, Preliminary Engineering Reports (PER), Watershed Protection Plans (WPP) and watershed master plans.

COMPANY NEWS

At HMT, we believe that healthy, collaborative departmental
relationships enrich the lives of our team members and cultivate
synergy in and outside of the workplace.

OUR TEAM

Our team has over 50 professional engineers, surveyors, AutoCAD technicians, five field crews, and friendly administrative staff.

Thor Thornhill, RPLS

Owner/CEO

Mr. Thornhill has a wide range of experience with land development. His career experience includes real estate appraisal, land development, property management, mergers and acquisitions of Class A office, big box industrial, large multi-family, Class A hotels, retail, and built-to-suites.

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Stephen Hanz, P.E.

Owner/COO

Mr. Hanz has enjoyed a career in civil engineering which has spanned continents in more than two decades. His project management experience has covered commercial and residential development, streets and drainage designs, as well as public works and wastewater.

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