In some cases, it may be possible to weigh the left and right wheel independently. I don't think you can do it on a CAT scale, but as an example, if I show up at the transfer station in my town, I can make two passes through their scale. On the first pass, I keep as far to the left as possible, and the TM's left tire runs down the apron instead of onto the weighing platform. Second pass, opposite. Naturally, they prefer that I show up when they are not busy, and pull out of the line if a trash truck shows up and needs to be weighed.
Scales like this are available at a lot of places. Recycling centers, concrete mixing yards, landscaping companies, masonry suppliers, moving companies, and many other places suggest themselves. It is my experience that local businesses are happy to help if you are polite and considerate.
Bill
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