§870.TABLE A. Soil Pressure  


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  • Soil Type

     

    Allowable Pressure (lbs/sq. ft.)

     

     

     

    Hard Pan or Rock

     

    4,000 and up

     

     

     

    Gravel or Sandy Gravel

     

    2,000

     

     

     

    Sandy or Silty Sand

     

    1,500

     

     

     

    Clay or Silty Clay

     

    1,000

     

     

     

    Peat or Uncompacted Fill

     

    Special Analysis Required