A site plan shows existing grade at elevation 102.5 and proposed grade at elevation 104.0 at a specific point. What is the cut or fill requirement at this location?
Correct Answer
C) 1.5 feet of fill
Since the proposed grade (104.0) is higher than the existing grade (102.5), fill material is required. The difference of 1.5 feet indicates 1.5 feet of fill is needed at this location.
Why This Is the Correct Answer
The correct answer is B because when the proposed grade elevation (104.0) is higher than the existing grade elevation (102.5), additional material must be added to raise the ground level. This process is called 'fill.' The calculation is straightforward: 104.0 - 102.5 = 1.5 feet of fill material needed. Fill operations involve bringing in and compacting soil or other approved materials to achieve the desired final grade.
Why the Other Options Are Wrong
Option A: 1.5 feet of cut
Option D has the correct operation (fill) but uses an incorrect calculation of 6.5 feet instead of the actual difference of 1.5 feet.
Option D: 6.5 feet of cut
Option C is incorrect because it shows the wrong calculation (6.5 feet instead of 1.5 feet) and incorrectly identifies the operation as 'cut' when fill is needed.
Memory Technique
Use 'FILL UP' - when the proposed grade goes UP from existing, you need to FILL. Think of filling a hole to make it higher.
Reference Hint
Florida Building Code, Chapter 18 - Soils and Foundations, or site work sections in construction management references
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