11. Blackberry, dog rose and African daisy are mainly confined to drainage lines and areas near the Dam. 12. Earlier in the day, engineers managed to work around a heater problem in a water-drainage line aboard Atlantis. 13. Drainage lines are laid with creek, river or the sea for drainage discharge . ( page38 to 40)14. It is the most threatening weed in the park and has spread to invade water-and nutrient-rich drainage lines . 15. In some cases downspouts empty into buried drainage lines or ceramic drainage tiles instead of onto the ground. 16. These have been sealed with up to 12 feet of concrete, with a drainage line set in the concrete. 17. The largely flat surrounding surface falls to a drainage line inside this fence before levelling out in the centre. 18. These almost parallel drainage lines flow in northern direction to discharge into either Manila Bay or Laguna de Bay. 19. Water conduits were constructed using natural drainage lines in the granite and by cementing flat stones with a natural mortar. 20. It is the most threatening weed in the park and has spread to invade water and nutrient rich drainage lines .
