By the time they pass your case back and forth among themselves and get a team out there to stick a camera down the pipe, they will have spent as much money as it would cost to just replace it.  We have a road outside my workplace being replaced at the moment. There was literally nothing wrong with it. They are taking a perfectly good two-way road and replacing it with a one way road that has artsy brickwork design. They claim it will have a nature strip, but the first thing they did was woodchip all the existing trees and I suppose new ones will be planted once they are done. Why? Who called for this? Where are the complaints? This is surely costing millions of taxpayer money addressing zero demand, and again, making the road less functional. There are main roads with potholes in which you can get lost that remain untouched, but this backstreet is super important. God damn bureaucratic state spending other people's money on shit.