I have been wondering how much weight an average 4” thick concrete driveway can support without the fear of damaging it. I have found that most contractors use 2500-3000 psi concrete for driveways. I figure you can calculate the ground pressure psi of your truck but depending on the base/sub grade under the concrete it’s capacity to hold weight can differ greatly. I am wondering what you guys use as a rule of thumb when driving your cranes, kbooms, grapple trucks on concrete driveways. Do you all use plywood or mats? Do you have something in writing that limits your liability if you do crack a slab? Is there a website or list somewhere showing what size vehicles can be driven on what thickness concrete? I’m asking because I toying around with the idea of using a manitou mrt 2150 telehandler with a grapple saw. It weights around 40k lbs and has 4 tires with a short wheelbase. I’m wondering if this machine could be set up on a driveway and used to remove trees over a house.