What is the maximum allowable depth of bury for PVC pipe?

Allowable depth of bury can be calculated based on the allowable deflection as described above. PVC products have been installed successfully at depths of 50 feet or more. The following tables provided as quick reference.

Calculated Deflections of Buried AWWA C900 PVC Pipe (%)

Measured Long-Term Deflections of SDR 35 (PS 46) PVC Pipe (%)

For more details please see: PVC Pipe Trench Construction