Euroflo® Culvert Pipe Calculator

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Determine your culvert pipe requirements in 3 simple steps.

Step 1

Select your catchment area size and rainfall volume in the dropdown boxes.

Step 2

How long is your culvert pipe job?

Step 3

Please enter your details below and a quote will be emailed directly to you.

The culvert sizes provided in this guide will in most cases pass storm flows equating to about the 1 in 5-year storm. Therefore, from time to time they can be expected to overtop and in very large storms may scour out. If you wish to have a higher level of storm protection, or gain a more site-specific understanding of your risk, you will need to take advice from your regional council or a suitably experienced consulting engineer.