Which practice helps ensure accurate cross slope during grading?

Which practice helps ensure accurate cross slope during grading?

• A. Use only one method to check cross slope
• B. Skip checks if soil is dry
• C. Check cross slope using grade stakes, laser, or string lines and adjust blade height
• D. Do not check cross slope at all

Answer: (C)

Cross slope accuracy comes from measuring with reliable tools and then adjusting the blade height to match the plan. Use grade stakes, a laser level, or string lines to establish the desired cross slope and to take readings at multiple points across the area. If the readings don’t meet the target, raise or lower the blade and recheck until the slope aligns with the design. This method ties measurement directly to action, helping drainage and creating a uniform grade. Skipping checks, relying on a single method, or not checking at all can hide irregularities and lead to an improperly drained, uneven surface.

Cross slope accuracy comes from measuring with reliable tools and then adjusting the blade height to match the plan. Use grade stakes, a laser level, or string lines to establish the desired cross slope and to take readings at multiple points across the area. If the readings don’t meet the target, raise or lower the blade and recheck until the slope aligns with the design. This method ties measurement directly to action, helping drainage and creating a uniform grade. Skipping checks, relying on a single method, or not checking at all can hide irregularities and lead to an improperly drained, uneven surface.