Gannett Fleming, Inc.
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Geotechnical Laboratory Services

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Gannett Fleming operates a fully equipped, 2,000-square-foot soils laboratory. The lab is certified by the American Association of State Highway and Transportation Officials (AASHTO) Accreditation Program to perform 28 American Society for Testing and Materials (ASTM) and/or AASHTO test procedures.

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We perform geotechnical testing for various projects:

  • Bridges
  • Buildings
  • Dams
  • Earth barriers
  • Embankments
  • Excavations
  • Floodwalls
  • Highways
  • Impervious linings
  • Landfills
  • Levees
  • Mine subsidence investigations
  • Pipelines
  • Site remediation
  • Structural foundations
  • Tunnels
  • Water and wastewater treatment plants

Equipment is available to perform:

  • Soil Classification
  • Atterberg Limits
  • Unconfined Compression
  • Direct and Residual Shear
  • Triaxial Shear
  • Consolidation
  • Compaction
  • California Bearing Ratio
  • Permeability
  • pH
  • Ion Exchange Capacity
  • Conductivity
  • Point Load Testing
  • Slake Durability
  • No Erosion Filter (NEF) Test
  • Filter Testing (USBR 5630)
  • Crumb Dispersion

Our laboratory resources allow us to quickly and accurately determine the material characteristics and parameters upon which successful analyses and designs depend. Our laboratory capabilities are also frequently used to help provide construction control on a wide variety of projects.