The strategic Srinagar-Jammu highway opened for one-way traffic after remaining closed for four consecutive days due to snowfall.
An official said that light-motor vehicles were allowed to move towards Kashmir after clearance of landslides at Panthal.
"Over three hundred light motor vehicles stranded at Ramban were allowed to move towards Kashmir on priority basis," said the official.
He said no traffic would be allowed to move towards Jammu.
The closure of the highway, which is the lifeline of essential supplies to the landlocked Kashmir Valley, has caused shortage of vegetables, mutton etc.
Authorities assert enough supplies of petroleum products including cooking gas were available in the valley, but people in many areas have been complaining of shortages.