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  1. JHB47

    H-20 vs H-25 Loading for HDPE Pipe

    Is H-25 a more severe loading specification than H-20? I do not have an AASTO Standards, but I have a design criteria of pipe rated at H-20 loading or greater for a ROW cossing. ADS puts out a backfill table for H-25 but I need to convert that to a single axle load at a certain backfill depth.

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