From 17 March until 2 May, the Sprint Highway/Jalan Semantan (Kuala Lumpur-bound and PJ-bound) will be closed at night time on weekdays and weekends to facilitate MRT work.
According to news sources, the road will be closed between 10pm and 5am during weekdays. On Saturdays it will be closed after 9pm until 12noon on Sunday.
“Due to this major closure, motorists on the Sprint Highway/Jalan Semantan from either Kuala Lumpur or Petaling Jaya will need to take alternative routes to get to their destinations,” said MRT Corp Director of Strategic Communications and Public Relations Amir Mahmood Razak.
MRT Corp has issued a list of suggested alternative routes, which you can see here.
Another portion of the Sprint Highway, near the Section 16 Petronas station, will have reduced lanes available (KL-bound) from 19 – 31 March, 10pm to 5am daily.