I'm in the planning process of installing a gravel driveway on my lot. My house will only be about 140' from the street and the goal to keep it from being visible from the road, even when looking down the driveway. I know I need to put some turns in the driveway to accomplish this, but I'm curious to know if anyone has any advice on how tight the turns can be? My truck has a 42' turning circle but I'll need to fit concrete trucks, flatbeds, trucks with trailers, etc down it during construction.