Crossfall Calculator

How to calculate cross fall? To start calculation, you’ll need to enter specific values into the calculator. For example, input the Horizontal Distance to find the Cross-fall Percentage.

What is Crossfall?

Cross fall refers to the slope of a surface, such as a road, that directs water runoff. It ensures drainage and prevents water accumulation. Understanding cross fall is essential for road design and maintenance.

Formula

The formula used to calculate crossfall is:

Variables

How to Use the Calculator

To use the Crossfall Calculator, follow these steps:

1. Basic Calculation:

• Enter the Horizontal Distance (e.g., 50 meters).
• Enter the Vertical Distance (e.g., 5 meters).
• Leave the Crossfall Percentage empty to find it.

1. Advanced Calculation:

• Enter the Total Roadway Length (e.g., 200 meters).
• Enter the Total Vertical Rise (e.g., 10 meters).
• Input the Number of Segments (e.g., 4) to find the Average Crossfall Percentage.

How Calculate Crossfall

Example 1

Inputs:

• Horizontal Distance: 50 meters
• Vertical Distance: 5 meters
• Crossfall Percentage: (leave empty)

Steps:

1. Use the formula:

   $$\text{CF}=\left(\frac{5}{50}\right)\times 100$$

    

2. Calculate:

   $$\text{CF}=0.1\times 100=10\mathrm{\%}$$

    

Example 2

Inputs:

• Horizontal Distance: (leave empty)
• Vertical Distance: 3 meters
• Crossfall Percentage: 6%

Steps:

1. Use the formula to find Horizontal Distance:

   $$\text{HD}=\frac{3}{(6\mathrm{/}100)}=50\text{ meters}$$

    

Thank you for using our tool.