// CODE SNIPPET
902.10 Depth to Rock Strata or 50 Percent by Volume Rock Fragments
Go To Full Code Chapter
Not less than 60 inches (1524 mm) of soil shall be present over uncreviced, impermeable bedrock. Where the soil contains 50-percent coarse fragments by volume in the upper 24 inches (610 mm), a mound shall not be installed except where there is not less than 24 inches (610 mm) of permeable, unsaturated soil with less than 50-percent coarse fragments located beneath this layer.
Upcodes Diagrams
Related Code Sections
902.10 Mound Systems, Depth to Rock Strata or 50 Percent by Volume Rock Fragments
A minimum of 60 inches (1524 mm) of soil shall be present over uncreviced, impermeable bedrock. Where the soil contains 50 percent coarse fragments ...
902.10 Mound Systems, Depth to Rock Strata or 50 Percent by Volume Rock Fragments
Not less than 60 inches (1524 mm) of soil shall be present over uncreviced, impermeable bedrock. Where the soil contains 50-percent coarse fragments ...
1803.5.6 Soils and Foundations, Rock Strata
, a sufficient number of borings shall be drilled to sufficient depths to assess the competency of the rock and its load-bearing capacity ...
1803.5.6 Soils and Foundations, Rock Strata
Where subsurface explorations at the project site indicate variations or doubtful characteristics in the structure of the rock upon which foundations ...
902.6 Mound Systems, Depth to Pervious Rock
A minimum of 24 inches (610 mm) of unsaturated natural soil shall be over creviced or porous bedrock ...