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
Montana Highway 1 Drummond had been paved. In 1951, the entire length of MT 1/US 10 ALT was paved, with an overall length of approximately . Also, the portion of MT 1/US 10 ALT traveling from present day mileposts 9.426 to 9.940 was reconstructed along its current route. In 1957, the sections of MT 1/US 10 ALT traveling from modern route mileposts 16.757 to 21.934 and 30.703 to 38.405 were reconstructed along the present route. In 1960, the portions of the highway traveling from current mileposts 21.935 to 24.189 and 38.406 to 48.106 were reconstructed along the present road. The next year, the