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Guidelines for Geotechnical Engineering Manual

  1. Introduction
  2. Geotechnical Practices - General
  3. Bridge Foundation Investigation (BFI) Guidelines
  4. Soil Survey Guidelines
  5. Retaining Wall Guidelines
  6. Other Structures Guidelines
  7. Pavement Condition & Thickness Design Guidelines
  8. Special Provisions
  9. References

 

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Guidelines for Geotechnical Engineering Manual

1. Introduction

1.1  Foreword
1.2  Preface
1.3  The Consultant as an Extension of GDOT Staff
1.4  Responsibility Chart Revised 12/1/01
1.5  Draft Consultant Performance Evaluation Form
2. Geotechnical Practices - General
2.1  Introduction Revised 11/19/01
2.2  Guidelines for Project Notifications within DOT Revised 11/19/01
2.3  Guidelines for Work on Private Property Revised 11/2/01
     2.3.1  Sample Right-of-Entry Letter
2.3.2  Sample Project Access Letter - Consultant
2.4  Erosion Control and Site Restoration Revised 11/19/01
2.5  Limitations of Liability - GDOT Consultants Revised 11/15/01
2.6  Unsuitable Materials - Investigations Revised 11/15/01
2.7  Sample Retention, Storage, and Handling Revised 11/12/04
3. Bridge Foundation Investigation (BFI) Guidelines
3.1 Introduction
3.1.1 BFI Reconnaissance Form Revised 4/6/04
3.2 Typical Software for BFI's Revised 11/16/01
3.3 BFI- Drilling, Sampling and Special Notes Revised 11/5/01
3.3.1 BFI Blank Report Template Revised 02/27/09
3.3.2 Sample BFI Report - Coastal Plain Region
3.3.3 Sample BFI Report - Piedmont or Valley and Ridge Region
3.4 Supplemental BFI Information
3.4.1 General Guidelines for Foundation Types within Georgia Revised 2/24/06
3.4.2 Guidelines for Selecting Pile Minimum Tip Elevations Revised 12/99
3.4.3 Sample Boring Layout with Cross-Section
3.4.4 Sample Boring Log
3.4.5 Bridge Foundation Types
3.4.6 Pile Bent
3.4.7 Concrete Bent with Pile Footing
3.4.8 Concrete Bent with Pedestal Footing
3.4.9 Concrete Bent with Spread Footing
3.4.10 Tower Pile Bent
3.5 BFI Checklist Revised 2/27/06
3.6 Guidelines for Scope & Cost Estimate Workbooks Revised 11/15/01
3.6.1 Personnel Job Descriptions
3.6.2 BFI & Other Structures Cost Proposal Worksheets
4. Soil Survey Guidelines
4.1 Introduction Revised 12/12/01
4.2 Soil Survey Reconnaissance Form Revised 4/15/04
4.3 Soil Surveys - Drilling, Sampling, and Special Notes Revised 2/17/06
4.4 Soil Survey Summary Reports
4.4.1 Blank Soil Survey Report Template Revised 12/18/09
4.4.2 Sample Soil Survey Report - Coastal Plain Region
4.4.3 Sample Soil Survey Report - Piedmont Valley or Valley and Ridge Region
4.4.4 County map-soils memo
4.4.5 County Map
4.4.6 Guidelines for Subgrade Treatment Revised 2/28/06
4.5 Supplemental Soil Survey Information
4.5.1 Physiographic Regions in Georgia
4.5.2 Erosion Index Revised 4/11/97
4.5.3 Historical pH and Resistivity Values
4.5.4 Sample Roadway Profile
4.5.5 Soil Classifications
4.5.6 Soil Classes
4.5.7 Counties with Acid-Producing Rock
4.5.8 Sample Field Book Entries
4.5.9 Erosion Index Chart
4.5.10 Sample Laboratory Testing Report
4.5.11 Sample Detail for Rock Cut
4.5.12 Sample Removal Detail
4.5.13 Correlation Chart for Estimating Soil Support Value(s)
4.5.14 Regional Factors for Use in Flexible Pavement Design
4.5.15 K Values
4.5.16 Map of Acceptable Soil Cement Use Revised 2/12/04
4.5.17 Sample Rock Embankment Slope Detail
4.5.18 Sample Soil Reinforcement Details
4.5.19 Berm Detail for Cuts or Fills over 35 feet
4.5.20 Slope Underdrain Detail
4.5.21 Sample Underdrain Placement Detail for High Groundwater Table Areas
4.5.22 Sample Fabric and Surcharge Detail
4.5.23 Sample Drainage Detail for Reconstructed Cut Section
4.5.24 Shrinkage Factor
4.5.25 Recommended Shrinkage Factor by Counties
4.5.26 Pipe Culvert Material Alternates - Piedmont/Blue Ridge Region Revised 3-22-10
4.5.27 Pipe Culvert Material Alternates - Coastal Plain Region Revised 3-22-10
4.5.28 Benching Detail  Revised 9/29/08
4.5.29 Guidelines for Base Thickness Recommendations
4.5.30 Serrated Slope Detail
4.5.31 Sample Wick Drain Detail
4.5.32 Sample Soil Survey Location Map
4.5.33 Guidelines for Lime Stabilization Revised 3/7/11
4.6 Soil Survey Report Checklist Revised 3/2/06
4.7 Typical Software for Soil Surveys Revised 11/16/01
4.8 Guidelines for Scope & Cost Estimate Workbooks
4.8.1 Personnel Job Descriptions Revised 11/15/01
4.8.2 Soil Survey Cost Proposal Worksheets
5. Retaining Wall Guidelines
5.1 Introduction Revised 11/15/01
5.2 Retaining Wall Foundation Investigations Revised 3/2/06
5.3 Supplemental Retaining Wall Information
5.3.1 Wall Types Used by Georgia DOT
5.3.2 Typical Section for Retaining Walls < 18' High
5.3.3 Typical Section for Retaining walls > 18' High
5.3.4 MSE Wall Locations in Georgia
5.3.5 Retaining Wall Panel Shapes
5.3.6 Proposed MSE Wall Panel Shapes
5.3.7 Soil Nailing Description
5.3.8 Double Wall Description
5.3.9 Insert Wall Description
5.3.10 Details of Retaining Walls Typical Sections
5.3.11 Typical Section of a Permanently Anchored Retaining Wall
5.3.12 Wall boring layouts
5.4 Blank Retaining Wall Report Template
5.4.1 Sample Stand-alone Retaining Wall Report
5.4.2 Sample Retaining Wall Report Included with BFI Report
5.5 Retaining Walls and Other Structures Checklist Revised 11/2/01
5.6 Retaining Wall Cost Estimate - Refer to BFI/Other Structures Worksheets
6. Other Structures Guidelines
6.1 Introduction
6.2 Sample Other Structure Reports
6.2.1 Sample Light Tower Foundation Report
6.2.2 Sample Rest Area Foundation Report
6.2.3 Sample Culvert Foundation Report as Part of Soil Survey Report
6.3 Other Structures Cost Estimate - Refer to BFI/Other Structures Worksheets
7. Pavement Condition & Thickness Design Guidelines
7.1 Introduction
7.2 Pavement Supplemental Information 
7.2.1 Road Surface Management: Pavement Condition Evaluation System
8. Special Provisions
8.1 Introduction Revised 11/15/03
8.2 Sample Special Provisions
8.2.1 SP205 Roadway Excavation Revised 09-24-09
8.2.2 SP 208 Embankments Revised 1/15/03
8.2.3 SP209 Subgrade Construction Revised 1/15/03
8.2.4 SP 209 Subgrade Construction Revised 11/15/03
8.2.5 SP 457 Geogrid Reinforced Slopes (Contractor Design) Revised 3/13/06
8.2.6 SP 457 Geogrid Reinforced Slopes (Dept or Consultant Design) Revised 3/13/06
8.2.7 SP 457 Geogrid Reinforcement Embankment Stalization Only  Revised 7/13/05
8.2.8 SP 520 Piling (Option to Predrill) Revised 11/15/03
8.2.9 Piling - Pilot Holes Revised 1/24/08
8.2.10 SP 524 Drilled Caisson Foundations (Wet)Revised 11/9/06
8.2.11 SP 524 Drilled Caisson Foundations (Dry) Revised 11/9/06
8.2.12 SP 572 Slope Underdrains Revised 1/4/06
8.2.13 SP809 Geogrid Materials Revised 11/15/03
8.2.14 SP881 Fabrics (Multiple fabric layers) Revised 6/16/06
8.2.15 SP881 Fabrics Revised 6/16/06
8.2.16 Geogrid Reinforced Slope Embankment Internal Drainage Details Moved to section 8.2.5 (6/24/09)
8.2.17  Slope Reinforcement Details Deleted 6/24/09
9. References
9.1  Reference Documents Revised 2/27/06