A massive snow-clearance operation is underway to restore the 270-kilometre long Jammu-Srinagar National Highway which remained closed for vehicular traffic for the third consecutive day today.<br />''<br />''Deputy Superintendent of Police, Traffic National Highway, Pardeep Singh Sen said, the operation on both sides of the Jawahar Tunnel is going on in full swing.<br />''<br />''An avalanche had also struck the Jawahar Tunnel area yesterday, blocking both tubes on Qazigund side.<br />''The Border Roads Organisation, which maintains the Jawahar tunnel stretch of the highway, pressed its men and machines to clear the road of the accumulated snow.<br />''<br />''<span style="color: #222222;">The DSP said they expect the highway to open later today.</span><br />