Reconstruction of the Karakoram Highway the China-Pakistan Friendship Tunnels can be traced to 2013, when China began construction on a bypass of Attabad Lake with a combination of 5 km worth of tunnels, two large bridges, and 78 small bridges to bypass the lake which had been formed after a 2010 earthquake triggered massive landslides. The resulting landslides cut off both the Indus River and Karakoram Highway resulting in the formation of the reservoir. Prior to completion of the bypass, all vehicular traffic had to be loaded onto barges to traverse the new reservoir. Construction of the tunnels began in 2012 and required 36 months
Yellowknife Highway Yellowknife Highway Highway 3, known more commonly as the Yellowknife Highway, but also the Great Slave Highway, connects Yellowknife, Northwest Territories to Highway 1, from a junction north of the Alberta border. Built in 1960, the highway is now completely paved and realigned after years of work concluded in 2006. The highway also connects with Behchoko (formerly Rae-Edzo) and Fort Providence. From Yellowknife, Highway 4 extends a further north, also providing access to the seasonal winter roads used by commercial trucking for mine resupply. Crossing the Mackenzie River (just south of Fort Providence) between 1960 and November 2012 required a