Group 53


HMT Engineering & Surveying services in New Braunfels, San Antonio, and Central Texas

Build Your Future on Strong Ground

Our skilled surveyors utilize progressive technology and software, allowing HMT to supply enhanced productivity and innovative solutions to personal and public sector purchasers.

• ALTA and Boundary Surveys
• House/Title Surveys
• Improvement and Topographic Surveys
• Construction Staking
• Elevation Certificates
• Subdivision Platting

Group 46

Our Survey Department
has experience in the

  • Railroad
  • Bridge and Tunnel Monitoring Projects
  • Federal Aviation Administration (FAA) 1A Surveys
  • H.U.D. Surveys and Survey Reports
  • American Land Title Association (ALTA)
  • Surveys and Texas Society of Professional Surveyors (TSPS)
  • CAT 1A Survey
  • Our team has a Certified Floodplain Manager (CFM), and we hold several TxDOT Certifications:
    • 15.1.1 – Survey
    • 15.1.2 – Parcel Plats
    • 15.1.3 – Legal Descriptions
    • 15.1.4 – Right of Way Maps
    • 15.2.1 – Design and Construction Survey


HMT was contracted in 2012 to survey 2400+ acres of property owned by Cemex Industries. HMT performed the field work and performed research to verify adjoiners. In 2012, HMT was also asked to prepare a drainage report for the Offsite Watershed area of the Cemex property. In 2013, HMT was contracted to calculate and design culverts to be installed under a proposed berm. HMT oversaw the boundary, spot evaluations/topography survey of the 2400 acres.

Canyon Lake Dam

HMT monitored the Service Bridge on Canyon Lake Dam in conjunction with an AECOM project. HMT met with AECOM and US Army Corp of Engineer personnel on site. The project lasted 3.5 years, with quarterly survey observations and reports being delivered on a regular schedule.

CenterPoint Energy

HMT has provided construction staking services and miscellaneous requests for CenterPoint Energy in Comal, Guadalupe, Hays, Bastrop, and several other Central Texas counties.

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Thor Thornhill, RPLS


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.


Stephen Hanz, P.E.


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.