I want to build a concrete ramp next to and including my front steps though the angle is rather tight. Is this a viable option as it is from the pavement in the front of the house. The ramp will have to be about three feet vertical and a good 20 feet in length I guess and I think I will have to widen the entrance way by a couple of feet on the right hand side. This will involve taking away from the wall on the boundary and then the earth to build a ramp on .