Longhorn Geomatics Limited
Mailing Address
10940 SW Barnes Rd. #189
Portland, Oregon 97225


  • Earthworks (cut & fill maps, quantity takeoffs, grading, volume calculations)
  • Digital Terrain Models
  • Machine Control Modeling (file preparation, site calibration, quality control)
  • ADA Ramp Layout and As-Built
  • Excavation Layout
  • Sewer Pipe and Storm Drain Layout
  • Striping Layout
  • Trench, slope, and volume monitoring
  • Stationing Marking
  • Concrete Paving Limits Marking
  • Inlet, Sump, Manhole layouts
  • Traffic Island layout and as-built
  • Permanent & temporary signs layout
  • Manhole as-built and re-discovery
  • Street surveying for milling and reconstruction
  • Topographic Surveys
  • Laser Scanning
  • UAS (drone) surveys
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