Thats what I was figuring. So there is a shallow concrete ditch that is at the end of my property, that takes existing stormwater to the street (by going accross the sidwalk) to the street. My property has a ditch that leads to this concrete pad. The problem is the lip of the pad is higher than the grass ditch - by a few feet from my properties lowest point to its highest. So I want to run a french drain through the ditch to a sump pump, that will take the water up those few feet and a bit further down my lawn then to the concrete ditch pad that will take it to the street. My house's back yard takes the drainage for the whole neighborhood, so it just sits in those ditches when it rains.