Enter the channel height (ft) and the channel length (ft) into the Calculator. The calculator will evaluate the Channel Slope. 

Channel Slope Calculator

Enter any 2 values to calculate the missing variable

Channel Slope Formula

CS = CH / CL

Variables:

  • CS is the Channel Slope (ft/ft)
  • CH is the channel height (ft)
  • CL is the channel length (ft)

To calculate Channel Slope, divide the channel height by the channel length.

How to Calculate Channel Slope?

The following steps outline how to calculate the Channel Slope.

  1. First, determine the channel height (ft). 
  2. Next, determine the channel length (ft). 
  3. Next, gather the formula from above = CS = CH / CL.
  4. Finally, calculate the Channel Slope.
  5. 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.

channel height (ft) = 30

channel length (ft) = 150

FAQs on Channel Slope Calculation

What is the significance of calculating the channel slope?
The channel slope is crucial for designing and constructing various structures like drainage systems, roads, and irrigation channels. It helps determine the flow rate of water or other substances, ensuring efficient and safe transport.

Can the channel slope formula be used for any type of channel?
Yes, the channel slope formula (CS = CH / CL) is versatile and can be applied to any channel, regardless of its material or purpose, as long as you have the channel’s height and length measurements.

How does channel slope affect water flow?
The slope of a channel directly influences the velocity of water flow. A steeper slope increases the flow rate, which can be beneficial for drainage but might require measures to prevent erosion. Conversely, a gentler slope slows the water flow, which can be useful for irrigation channels to allow more water to seep into the ground.