From what I heard from my friend who took 74, he said the BC
drove from Clementi Road(aft NP), turned left to Upper Bukit Timah
Road, followed 52's route, went up the PIE, and came out, same like
52's route, totally skipping that entire section.
He was like so happy, 74 on PIE for him, his 1st time
maybe OCC informed him before he entered Bt Timah area, escaping
from the flood area 