Enter the distance and gradient into the calculator to determine the fall in a drainage system. The fall is the vertical drop of the drainage over a specified distance, given a gradient percentage.
Drainage Fall Formula
The following formula is used to calculate the drainage fall:
F = (G / 100) * D
Variables:
- F is the fall (meters)
- G is the gradient (%)
- D is the distance (meters)
To calculate the drainage fall, multiply the gradient percentage by the distance and then divide by 100 to convert the percentage to a decimal.
What is Drainage Fall?
Drainage fall is the measure of vertical drop within a drainage system over a certain distance. It is an important aspect of civil engineering and building design, ensuring that water flows away from structures effectively. The gradient is typically expressed as a percentage, representing the ratio of the fall to the horizontal distance.
How to Calculate Drainage Fall?
The following steps outline how to calculate the Drainage Fall.
- First, determine the distance (D) over which you want to calculate the fall, in meters.
- Next, determine the gradient (G) of the drainage system as a percentage.
- Use the formula F = (G / 100) * D to calculate the fall (F).
- Finally, calculate the Drainage Fall (F) in meters.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem:
Use the following variables as an example problem to test your knowledge.
Distance (D) = 50 meters
Gradient (G) = 2%
Using the formula, the fall (F) would be calculated as follows:
F = (2 / 100) * 50 = 1 meter