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GTA Associates, Inc., Greensboro, North Carolina

Greensboro projects often span industrial sites, commercial buildouts, redevelopment work, and institutional expansion across the Piedmont Triad. GTA provides geotechnical engineering services in Greensboro, North Carolina with soil testing, subsurface investigation, construction materials testing, and environmental consulting tailored to the region’s site and permitting demands. 

Our Services

Construction Observations and Material Testing

  • Engineering Consultation and construction consulting services
  • Mass Grading – Subgrade Soil Evaluations and Structural Fill Testing, including soil stabilization
  • Utilities – Trench Backfill Observations and Testing
  • Retaining Wall Inspections, Testing and Certifications
  • Bituminous Concrete – Asphalt inspection and evaluation of pavement damage
  • Foundations – Soil Bearing Capacity of Footings (foundation inspection)
  • Chapter 17 Special Inspections with certified special inspectors
  • Laboratory Services, including construction materials testing and soil lab testing
  • Concrete Sampling (concrete inspection, compressive strength testing)

Environmental Consulting Services

  • Phase I environmental site assessment
  • Phase II environmental site assessment
  • Brownfield Services including brownfield redevelopment and vapor intrusion
  • Subsurface Evaluations and groundwater monitoring
  • Remedial Design and Implementation for soil and groundwater remediation
  • Vapor Mitigation System Designs (vapor intrusion mitigation)
  • Property Condition Assessments (property condition assessment)
  • Underground Storage Tank Removal
  • Risk-Based Closure and environmental remediation services
  • Hazardous and Non-Hazardous Materials Management
  • Natural Resource Inventory and forestry consulting support
  • Forest Stand Delineation and Conservation Plans
  • Wetland Evaluations, Delineations, Mitigation, and Permitting (wetland delineation, wetland permitting)
  • Stream Restoration and Stream Buffer Enhancement (stream mitigation)
  • FERC 7(c) Applications
  • NEPA Evaluations and environmental impact studies
  • Rare, Threatened, and Endangered Species Surveys and Consultation (endangered species survey)
  • Historic Resource/SHPO Evaluations
  • Aquifer Testing and Analysis
  • Water Supply and Wastewater Permitting Services
  • On-Site Wastewater Disposal Feasibility Evaluations
  • Nutrient and Hydraulic Loading Analysis
  • Groundwater Dewatering, Mounding, and Flow Analysis
  • Stormwater Control Measure Inspection / NPDES Stormwater Compliance (stormwater monitoring)

Geotechnical Services

  • Geotechnical Feasibility Studies as part of geotechnical site investigation
  • Subsurface Investigation
  • Ground Improvement Design/Recommendations, including soil stabilization
  • Seismic Analysis and seismic site class evaluation
  • Subsidence Mitigation and sinkhole investigation
  • Geologic Hazard Mapping for soil erosion risks
  • Groundwater Control Design for high water table conditions
  • Geotechnical Instrumentation and Monitoring
  • Seepage Analysis
  • Flexible and Rigid Pavement Analysis/Design for roadways and parking lot applications
  • Geotechnical Laboratory Testing, including soil laboratory testing

Natural Resources Services

  • Wetland delineation and wetland permitting
  • Wetland mitigation design and monitoring
  • FERC 7(c) Applications
  • Invasive Species Management
  • Threatened and Endangered Species Surveys, Assessment, and Permitting (endangered species)
  • Biological and Ecological Assessments / environmental impact assessments
  • Tree Survey and Condition Assessments (tree survey, tree condition assessment) – ISA Certified Arborist On Staff
  • Wetland Restoration and Enhancement, including wetland mitigation and restoration

Memberships & Associations

Our Team

Contact Us

3404 W. Wendover Avenue, Suite K
(336) 542-0143

W. Shawn Sullivan, PE

Vice President

Brandon Richards

Associate

Join Team GTA

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