10 yard dumps are fairly common going up and down the road. 20 yard side dumps were common last year due to construction, but aren't sharing the road so much this year. 5 yard dump trucks are driven to work often enough that it is not remarkable, although Ford 350s and GMC duallies with 20 foot gooseneck trailers are everywhere.
Man, I am telling you the only Horse Power I relate to is EQUINE. By "dump truck" do you mean "pickup truck"?