Quote:
Originally Posted by You Need A Thneed
A Scale. To measure the weight of the soil they take out, I would assume. I don't know specifically why they would do that though.
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Typically they are used to make sure the trucks aren't overloaded (the route to the site where they are taking the soil may have a weight restricted bridge, for instance). They have one up on the Stoney Trail @ Crowchild site as well that I've seen some of the larger trucks stopping on)