How To Install Invisible Fence Under Driveway. The way the invisible fence works is that it shocks the dog via the collar as. What kind of pipe would you need to run a wire across a gravel driveway?.
Back fill the trench with the excavated gravel. There is no gate, so you can't forget to close it. When installing a dog fence you will more than likely need to cross a driveway or pathway somewhere on your property.