From the above link, an important news item:
A case in point is Durbuk-Daulat Beg Oldie road. About 160km of this 255km-long critical passage that provides connectivity to Daulat Beg Oldie - the last point before Karakoram - has been completed, but a 110km stretch needs to be re-laid. A problem in the road's alignment was noticed after sections were washed away by flooding from the Shyok river that flows along the link.
DBO has been maintained till date through air-maintenance. The surface link involves hiking through a very treacherous terrain and from Shyok Village along the Shyok river, DBO is easily 3-4 days trek.
The laying of this road should allow for easier movement of troops and material and reduce dependence on air-support. A long overdue requirement which is being thankfully now being met.Added later:
The road will allow for surface connectivity of this vital sector - also called Sub Sector North (SSN) with both Nubra Valley and Chushul.
Please see the map link below:http://wikimapia.org/#lat=34.1105896&lon=78.1118938&z=8&l=0&m=h
The cursor in the map is centered on Darbuk - which is situated prior to Pangong Tso Lake and Chushul further down. The road connects Darbuk with Shyok Village and thence follows north along the alignment of Shyok River in upper Shyok Valley.
What remains to be the seen is how it moves from Shyok River valley to Aksai Chin Plateau. The land route taken to reach DBO and thence KK Pass actually leaves the Shyok River and reached a point called Murgo which has a village and I think an ITBP Camp as well. From here, it goes to Burtse Camp, Qizil Langar and reaches the Depsang Plains.
The cursor on the map below is centered on Murgo:http://wikimapia.org/#lat=35.0411581&lon=77.9366019&z=12&l=0&m=b&v=8
To North-East of Murgo you can see Burtse Camp marked on the map. North of this is Qizil Langar and Depsang Plain. Further North is DBO and KK Pass.
The new road will connect DBO with Nubra Valley and HQ of 102 Infantry Bde (responsible for SSN/DBO) and Chushul (HQ of 114 Infantry Bde). We will finally get much required connectivity between sectors. But mind you, Shyok is a very treacherous river. If you zoom on the river in maps linked above, you can see that it flows in multiple channels. On top of it, the side walls of river are very steep.
These two features pose two problems - (a) you cannot walk along the bank of the river as there is practically no bank. You have to walk on the river bed. (b) Because you have to walk along river bed and the river flows in multiple channels, you are forced to cross the river multiple times as you zig-zag your way from one bank to other.
Here is an example of river flowing in multiple channels: