GSG performed boundary and topographic surveys for four USPS sites in Chicago, Naperville, Bloomington, and Aurora, IL, following Illinois Minimum Standards. Surveys were completed using GPS, conventional methods, static laser scanning, and Drone LiDAR with photogrammetry.

Scope of Services

• • Recovered and evaluated existing monuments; installed new monumentation as needed
  • Used GPS, conventional survey methods, laser scanning, and drone-based LiDAR for data collection
  • Processed data with DJI Terra and Trimble Business Center software
  • Integrated results into Autodesk platforms (ReCap, Infraworks, Civil 3D)
  • Delivered survey in PDF and electronic CAD formats
  • All work supervised by a licensed Professional Land Surveyor