Geotechnical Investigation Review Checklist
Ensure construction project safety & success! Our Geotechnical Investigation Review Checklist guides you through essential soil & rock analysis, preventing costly errors & delays. Download now for a thorough, expert review! #geotechnical #construction #checklist #soiltesting #engineering
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Scope of Work & Objectives
Ensuring the investigation's scope aligns with the project's needs and intended use.
Describe the project's intended use and structural load requirements.
Summarize the stated objectives of the geotechnical investigation as outlined in the proposal/contract.
Was the scope of work sufficient to address the project's needs?
Estimated design loads (e.g., kPa or psf).
Describe any limitations or assumptions stated in the scope of work.
Which aspects of the project were explicitly covered in the scope?
Site Characterization & Geology
Review of site geology, topography, and existing conditions as documented in the report.
Briefly describe the site's geological setting (e.g., near a fault line, in an area of known landslides).
Maximum Slope Gradient (in degrees) observed at the site.
Topographic Map (showing contours, drainage patterns, and existing structures)
Was a review of historical aerial photographs/satellite imagery performed?
Describe any visible signs of instability (e.g., cracks in the ground, tilted trees, evidence of past erosion).
Are there any known geological hazards in the vicinity (e.g., active faults, karst topography)?
Describe the soil profile at the ground surface based on visual inspection (e.g., topsoil, sand, clay).
Borehole/Test Pit Locations & Density
Assessment of the adequacy of borehole/test pit locations and the number of explorations performed.
Number of Boreholes/Test Pits
Justification for Borehole/Test Pit Density
Borehole/Test Pit Location Accuracy (GPS Coordinates)
Were Boreholes/Test Pits located to investigate areas of concern (e.g., fills, slopes)?
Description of any deviations from proposed borehole/test pit locations
Were borehole/test pit locations representative of the site?
Site Plan Showing Borehole/Test Pit Locations
Soil/Rock Properties & Classification
Verification of soil/rock classification, index properties, and strength parameters.
Soil Classification System Used?
Detailed Description of Soil Types Encountered
Dry Density (lbs/ft³)
Moisture Content (%)
Liquid Limit (LL)
Plastic Limit (PL)
Plasticity Index (PI)
Laboratory Tests Performed (Select all that apply)
Notes/Comments regarding Soil/Rock Properties
Groundwater Conditions
Evaluation of groundwater levels, flow patterns, and potential impact on construction.
Highest Recorded Groundwater Level (ft below ground surface)
Lowest Recorded Groundwater Level (ft below ground surface)
Groundwater Flow Direction (based on piezometers/field observations)
Groundwater Flow Rate (estimated)
Description of any observed groundwater quality (e.g., color, odor, presence of contaminants)
Attach any piezometer data logs or monitoring records
Was a drawdown test performed?
Seismic Design Parameters
Review of seismic hazard assessments and ground motion parameters, if applicable.
Peak Ground Acceleration (PGA) - Horizontal
Peak Ground Acceleration (PGA) - Vertical
Design Response Spectrum Period (T)
Seismic Design Category (SDC)
Description of Seismic Hazard Assessment Methodology
Seismic Hazard Maps or Data
Site Class (per relevant code)
Recommendations & Design Considerations
Assessment of geotechnical recommendations and their impact on structural design and construction methods.
Evaluate Adequacy of Foundation Recommendations
Assess Slope Stability Recommendations (if applicable)
Verify Recommended Bearing Capacity (psf/kPa)
Review Retaining Wall Design Recommendations
Recommended Ground Improvement Techniques (Select all that apply)
Describe any concerns regarding settlement predictions
Foundation Type Recommended?
Notes regarding recommendations for Dewatering (if required)
Reporting & Documentation
Verification of data accuracy, clarity, and completeness of the geotechnical report.
Overall Clarity and Readability Assessment
Report Date Verification
Original Geotechnical Report
Units of Measurement Consistency
Summary of Key Findings & Assumptions
Report Accuracy - Data Validation
Notes on any missing information or potential errors
Compliance & Regulations
Confirmation that the investigation adheres to relevant codes, standards, and regulations.
Were applicable local building codes consulted?
Was the investigation performed in accordance with ASTM standards?
ASTM Standard Version Used (e.g., ASTM D420-21)
Describe any deviations from standard practices or regulations and justification.
Upload any permits or approvals related to the geotechnical investigation.
Was the investigation performed by a licensed geotechnical engineer?
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