SC Water And Sewer Plants Practice Questions - South Carolina Water And Sewer Plants Contractor Examination Exam

What is the difference between subgrade and finished grade on a plant grading plan?

They are always the same elevation Subgrade is the prepared surface that will receive a structure, slab, or pavement section; finished grade is the final design surface Finished grade is always 2 feet below subgrade Subgrade is the top of the water surface in a tank

Correct Answer:

Subgrade is the prepared surface that will receive a structure, slab, or pavement section; finished grade is the final design surface

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