a recessed retention tank retains rainwater from the parking lot and the flat roofs of the industrial halls and the supermarket. t

artificial barrier capacity channel cladding concrete crater dam destruction drainage drains embankment emergency empty end flat flood floodgate flow fortified halls here hole industrial lot meadow outdoor park parking perforated pipe pond protect protection rainwater ramp recessed refueling reservoir retains retention roof roofs sewage sewer shoreditch slope slow slowly soak soaks splash stone supermarket swimmer tank terraced tiles tree wall water waterfront