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Re: snow load surcharge

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croser(--nospam--at) wrote:

> I have never included snow load as a surcharge on retaining walls for the
> reason that snow will only accumulate on the ground when it is frozen (as
> you've observed) and when the ground is frozen, the equivalent fluid
> pressure should be approaching zero, at least for the soil above frost line
> which is probably 3 feet which is equivalent to 300 to 360 psf of surcharge,
> depending on your soil density.

Snow can stick and accumulate long before frost gets down to 3' below soil.

Stan Johnson, PE,  Under favorable weather conditions, snow can also sublime!