Shahrah-e-Resham

The Karakoram Highway (, ), also known as the KKH, National Highway 35 (), N-35, and the ChinaPakistan Friendship Highway, is a national highway which extends from Hasan Abdal in the Punjab province of Pakistan to the Khunjerab Pass in Gilgit-Baltistan, where it crosses into China and becomes China National Highway 314. The highway connects the Pakistani provinces of Punjab and Khyber Pakhtunkhwa plus Gilgit-Baltistan with China's Xinjiang Uyghur Autonomous Region. The highway is a popular tourist attraction and is one of the highest paved roads in the world, passing through the Karakoram mountain range, at at maximum elevation of near Khunjerab Pass. Due to its high elevation and the difficult conditions under which it was constructed, it is often referred to as the Eighth Wonder of the World. The highway is also a part of the Asian Highway AH4.

History

The Karakoram Highway, also known as the Friendship Highway in China, was built by the governments of China and Pakistan. It was started in 1962, completed in 1979 and opened to the public in 1986. Pakistan initially favored routing through Mintaka Pass. In 1966, China, citing the fact that Mintaka would be more susceptible to air strikes, recommended the steeper Khunjerab Pass instead. About 810 Pakistanis and about 200 Chinese workers died, mostly in landslides and falls, while building the highway. Over 140 Chinese workers who died during the construction are buried in the Chinese cemetery in Gilgit. The route of the KKH traces one of the many paths of the ancient Silk Road.

On the Pakistani side, the road was constructed by FWO (Frontier Works Organisation), employing the Pakistan Army Corps of Engineers. The Engineer-in-Chief's Branch of the Pakistani Army completed a project documenting the history of the highway. The book ''History of Karakoram Highway'' was written by Brigadier (Retired) Muhammad Mumtaz Khalid in two volumes. In the first volume, the author discusses the land and the people, the pre-historic communication system in the Northern Areas, the need for an all-weather road link with Gilgit, and the construction of Indus Valley Road. The second volume records events leading to the conversion of the Indus Valley Road to the Karakoram Highway, the difficulties in its construction, and the role of the Pakistan Army Corps of Engineers and their Chinese counterparts in its construction.

The Highway

The highway, connecting the Gilgit–Baltistan region to the ancient Silk Road, runs approximately from Kashgar, a city in the Xinjiang region of China, to Abbottabad, of Pakistan. An extension of the highway southwest from Abbottabad, in the form of the N-35 highway, meets the Grand Trunk Road, N-5, at Hasan Abdal, Pakistan.

The highway cuts through the collision zone between the Eurasian Plate and Indian Plate, where China, Tajikistan, Afghanistan, and Pakistan come within of each other. Owing largely to the extremely sensitive state of the Kashmir conflict between India and Pakistan, the Karakoram Highway has strategic and military importance to these nations, but particularly Pakistan and China.

On 30 June 2006, a memorandum of understanding was signed between the Pakistani National Highway Authority (NHA) and China's State-owned Assets Supervision and Administration Commission (SASAC) to rebuild and upgrade the Karakoram Highway. According to SASAC, the width will be expanded from , and its transport capacity will be increased three times its current capacity. In addition, the upgraded road will be designed to particularly accommodate heavy-laden vehicles and extreme weather conditions.

China and Pakistan are planning to link the Karakoram Highway to the southern port of Gwadar in Balochistan through the Chinese-aided Gwadar-Dalbandin railway, which extends to Rawalpindi.

On 4 January 2010, the KKH was closed in the Hunza Valley, eliminating through traffic to China except by small boats. A massive landslide upstream from Hunza's capital of Karimabad created the potentially unstable Attabad Lake, which reached in length and over in depth by the first week of June 2010 when it finally began flowing over the landslide dam. The landslide destroyed parts of villages while killing many inhabitants. The subsequent lake displaced thousands and inundated over of the KKH, including the long KKH bridge south of Gulmit.

It is highly questionable whether the lake, which reached in length in 2011, will drain. Goods from and to further north were transported over the lake by small vessels, to be reloaded onto trucks at the other end. In July 2012, Pakistan began constructing a revised route around the lake at a higher elevation with five new tunnels, with a total length of 7.12 km and two new bridges. The work was contracted out to the China Road & Bridge Corporation (CRBC) and was completed in September 2015.

Pakistani section

At in length, the Pakistani section of the highway starts at Abbottabad, although the N-35 of which KKH is now part, officially starts from Hasan Abdal. The highway meets the Indus River at Thakot and continues along the river until Jaglot, where the Gilgit River joins the Indus River. This is where three great mountain ranges meet: the Hindukush, the Himalayas, and the Karakoram. The western end of the Himalayas, marked by the ninth highest peak in the world, Nanga Parbat, can be seen from the highway. The highway passes through the capital of Gilgit–Baltistan, Gilgit, and continues through the valleys of Nagar and Hunza, along the Hunza River. Some of the highest mountains and famous glaciers in Karakoram can be seen in this section. The highway meets the Pakistani-Chinese border at Khunjerab Pass.

Karakoram Highway reconstruction

As part of the $46 billion China Pakistan Economic Corridor, reconstruction and upgrade works on the Pakistani portion of the Karakoram Highway (KKH) are underway. The KKH spans the long distance between the China-Pakistan border and the town of Hasan Abdal. At Burhan Interchange near Hasan Abdal, the existing M1 motorway will intersect the Karakoram Highway. From there, access onwards to Islamabad and Lahore continues as part of the existing M1 and M2 motorways, while Hasan Abdal will also be at intersection of the Eastern Alignment, and the Western Alignment which will lead towards the port city of Gwadar.

Karakoram Highway Realignment (China-Pakistan Friendship Tunnels)

A large section of the highway was damaged by a landslide in 2010 that created Attabad Lake. The resulting landslides cut off both the Hunza River and Karakoram Highway resulting in the formation of the reservoir. Prior to the completion of the bypass, all vehicular traffic had to be loaded onto boats to traverse the new reservoir. Construction of the tunnels began in 2012 and required 36 months for completion. The long series of bridges and tunnels was inaugurated on 15 September 2015 at a cost of $275 million and was hailed as a major accomplishment. The route comprises five tunnels and several bridges. The longest tunnel is , followed by , , and , while the Shishkat Great Bridge on Hunza River is long. The realignment restored the road link between Pakistan and China.

Chinese section

The Chinese section of the Karakoram Highway follows the north-south Sarykol ("Yellow Lake") valley just west of the Tarim Basin. The road from Kashgar goes southwest about and then turns west to enter the Gez (Ghez) River canyon between Chakragil mountain on the north and Kongur Tagh mountain on the south. From the Gez canyon the population becomes Kirgiz. Having climbed up to the valley, the road turns south past Kongur, Karakul Lake, and Muztagh Ata on the east. Below Muztagh Ata, a new road goes west over the Kulma Pass to join the Pamir Highway in Gorno-Badakhshan, Tajikistan. The main road continues over a low pass (where the population becomes Tajik) and descends to Tashkurgan. Further south, a valley and jeep track leads west toward the Wakhjir Pass to the Wakhan Corridor. Next the road turns west to a checkpost and small settlement at Pirali, and then the Khunjerab Pass, beyond which is Pakistan, the Khunjerab River and Hunza.

Major towns near Karakoram Highway

* Rawalpindi Islamabad Pakistan railhead