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
Colorado State Highway 82 above sea level, the traverse of Independence Pass is the highest paved crossing of the Continental Divide in North America, and the highest paved through road on Colorado's state highway network. The pass is closed during the winter months, isolating Aspen from the east and making Highway 82 the only way to reach the popular ski resort town by road. A private foundation has worked with the Colorado Department of Transportation (CDOT), which maintains the road, to undo environmental damage to the alpine tundra created when a disused stagecoach route built across the pass during the Colorado Silver Boom of