The Border Roads Organization team personnel have been instructed to transport machines to enable vertical drilling on the Silkyara tunnel in Uttarkashi through the road they recently built to access the top of the hill, officials said on Saturday.
“Soon, a joint meeting of all the departments concerned will be held and decision will be taken on when work on the vertical drilling will commence,” said the official.
Officials are exploring the option of vertical drilling too as the heavy duty auger machine that was used in the horoizontal drilling through the mouth of the tunnel from the Silyara side hit an obstacle on Friday evening.
