poorly designed pedestrian bridge

whoever designed and built this pedestrian bridge forgot about the pedestrians who need to bypass the bridge and move by the side. if you are doing so, you may have to step onto the road to walk past this overhead bridge. (see middle picture)

it must be one of the earlier pedestrian bridges because it is totally iron - rust has set in at a few points - and concrete and there are no troughs at the sides for the bougainvillea plants.