2. Susan Harwood Program Grant – The University of Texas at Arlington Thanks to the Susan Harwood Program Grant

3. Susan Harwood Program Grant – The University of Texas at Arlington Excavation Safety Competent Person Training Program Part 2 Excavation Safety Competent Person Training Program Part 2

4. Susan Harwood Program Grant – The University of Texas at Arlington Protective Systems Shielding Sloping Shoring

5. Susan Harwood Program Grant – The University of Texas at Arlington

6. Sloping Options 1.Sloping sides 1½ h to 1 v (34 0 ) - - as though it were Type C soil. 2.Use Appendix A to classify the soil and Appendix B to determine the correct slope. OR Have a registered professional engineer provide: Tabulated data for sloping or A site-specific sloping profile.

7. Susan Harwood Program Grant – The University of Texas at Arlington Sloping Options 1.Sloping sides 1½ h to 1 v (34 0 ) - - as though it were Type C soil. 2.Use Appendix A to classify the soil and Appendix B to determine the correct slope. OR Have a registered professional engineer provide: Tabulated data for sloping or A site-specific sloping profile.

8. Susan Harwood Program Grant – The University of Texas at Arlington Sloping Options 1.Sloping sides 1½ h to 1 v (34 0 ) - - as though it were Type C soil. 2.Use Appendix A to classify the soil and Appendix B to determine the correct slope. OR Have a registered professional engineer provide: Tabulated data for sloping or A site-specific sloping profile.

9. Susan Harwood Program Grant – The University of Texas at Arlington Sloping Options 1.Sloping sides 1½ h to 1 v (34 0 ) - - as though it were Type C soil. 2.Use Appendix A to classify the soil and Appendix B to determine the correct slope. OR Have a registered professional engineer provide: Tabulated data for sloping or A site-specific sloping profile.

10. Susan Harwood Program Grant – The University of Texas at Arlington

11. Terms Currently Used by OSHA Safe angle Maximum allowable slope Actual slope Angle of repose

12. Susan Harwood Program Grant – The University of Texas at Arlington

13. 0 = 45 o o o Type B

14. Susan Harwood Program Grant – The University of Texas at Arlington

15. Wrong Right 0 = 90 o 0 = 34 o Benching is not allowed in Type C Soil.

16. Susan Harwood Program Grant – The University of Texas at Arlington

21. Use the timber or aluminum hydraulic shoring charts from the OSHA Standard - - or - - Have a registered professional engineer provide: Tabulated data Manufacturer’s tabulated data Site-specific design Shoring Options

22. Susan Harwood Program Grant – The University of Texas at Arlington Use the timber or aluminum hydraulic shoring charts from the OSHA Standard - - or - - Have a registered professional engineer provide: Tabulated data Manufacturer’s tabulated data Site-specific design Shoring Options

23. Susan Harwood Program Grant – The University of Texas at Arlington Use the timber or aluminum hydraulic shoring charts from the OSHA Standard - - or - - Have a registered professional engineer provide: Tabulated data Manufacturer’s tabulated data Site-specific design Shoring Options

24. Susan Harwood Program Grant – The University of Texas at Arlington Use the timber or aluminum hydraulic shoring charts from the OSHA Standard - - or - - Have a registered professional engineer provide: Tabulated data Manufacturer’s tabulated data Site-specific design Shoring Options

25. Susan Harwood Program Grant – The University of Texas at Arlington Do not exceed allowable surcharge loads. Overloading

26. Susan Harwood Program Grant – The University of Texas at Arlington

40. Slide Rail System

41. Susan Harwood Program Grant – The University of Texas at Arlington Slide Rail System

42. Susan Harwood Program Grant – The University of Texas at Arlington

46. Installation of a Vertical Shore Installation of a Vertical Shore

47. Susan Harwood Program Grant – The University of Texas at Arlington Installation of a Vertical Shore Installation of a Vertical Shore

48. Susan Harwood Program Grant – The University of Texas at Arlington Removing a Vertical Shore Removing a Vertical Shore

49. Susan Harwood Program Grant – The University of Texas at Arlington Environmentally Friendly Shoring Fluid

50. Susan Harwood Program Grant – The University of Texas at Arlington

65. What about Vertical Shores in Type C Soil?

66. Susan Harwood Program Grant – The University of Texas at Arlington

67. Equivalent Fluid Pressure or Equivalent Weight Effect PCF A A B B C C 25458060

68. Susan Harwood Program Grant – The University of Texas at Arlington C-60

69. Susan Harwood Program Grant – The University of Texas at Arlington

79. Utility Installation

80. Susan Harwood Program Grant – The University of Texas at Arlington Utility Installation

81. Susan Harwood Program Grant – The University of Texas at Arlington Utility Repair

82. Susan Harwood Program Grant – The University of Texas at Arlington Utility Repair

83. Susan Harwood Program Grant – The University of Texas at Arlington

84. Employees may remain inside the shield when it is moved forward, but they may not be in the excavation when the shield is installed, removed, or raised vertically.

85. Susan Harwood Program Grant – The University of Texas at Arlington

89. ** PSF rating and depths are based on short term exposure with excavation open a period of time equal to 24 hours or less. Type B not exceeding 45 PSF per foot of depth, and Type C nor exceeding 60 PSF per foot in depth. Beware of Limitations to Shield Use

90. Susan Harwood Program Grant – The University of Texas at Arlington

105. No Lateral Shift

106. Susan Harwood Program Grant – The University of Texas at Arlington

110. Check the Clearance!

111. Susan Harwood Program Grant – The University of Texas at Arlington Check the Clearance!

112. Susan Harwood Program Grant – The University of Texas at Arlington

120. This material was produced under Susan Harwood Program grant number HT-16580-07-60-F-48 from the Occupational Safety and Health Administration, U.S. Department of Labor. It does not necessarily reflect the views or policies of the U.S. Department of Labor, nor does mention of trade names, commercial products, or organizations imply endorsement by the U.S. Government.