What is the maximum slope on a finish grade?

What is the maximum slope on a finish grade?

• A. 30 percent
• B. 50 percent
• C. 20 percent
• D. 40 percent

Answer: (B)

Finish grade slope measures how steep the final ground surface is, expressed as a percent that shows how much vertical drop occurs per horizontal distance. The maximum allowed is fifty percent, meaning for every two feet of horizontal distance the surface can drop by one foot. This limit keeps grading practical with standard equipment, ensures water drains away from structures, and reduces erosion and stability problems. Slopes steeper than this are hard to stabilize, tend to erode, and often require special methods, so fifty percent is the upper practical limit for a finish grade.

Finish grade slope measures how steep the final ground surface is, expressed as a percent that shows how much vertical drop occurs per horizontal distance. The maximum allowed is fifty percent, meaning for every two feet of horizontal distance the surface can drop by one foot. This limit keeps grading practical with standard equipment, ensures water drains away from structures, and reduces erosion and stability problems. Slopes steeper than this are hard to stabilize, tend to erode, and often require special methods, so fifty percent is the upper practical limit for a finish grade.