Well, the bottom gate, to be more precise! It's the coming of the sewerage system, to be followed some time later by the mains water. They call it progress! I call it a nuisance because the septic tank never failed us in over thirty years, and who wants to drink the town water laced with chemicals anyway?
As for that puny sewerage pipe which is just 40mm in diameter, we may want to go easy on the Indian curry! Short of bringing back the 100mm PVC pipe, the neighbourhood will have to take turns going to the loo.
And they call it progress!