Pump track: sandy dirt for a wet climate

Hi Lee,

I’m building a pump track in the PNW where the soil is essentially always wet. What do you think an ideal soil mix would be? Would 60% sand / 40% clay be a good balance? Could I go with even more sand?



Hi Alex,

That sounds good. According to the soil triangle, that’ll be “sandy clay.”

I fear that 30% clay won’t pack well enough for a pump track.
Here’s a crazy idea: Go out to a sweet local trail that drains and packs well, then test that dirt with a mason jar. That procedure is described in the Pump Track Nation book.
I hope that’s helpful,
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