National Highway 1D (India, old numbering)
|Length||422 km (262 mi)|
|West end||Srinagar, Jammu & Kashmir|
|NH 1A in Srinagar|
|East end||Leh, Ladakh|
|States||Jammu and Kashmir: 422 km (262 mi)|
|Srinagar - Zoji La - Kargil - Leh|
National Highway 1D (NH 1D), also known as Srinagar-Leh Highway, was a National Highway entirely within the state of Jammu & Kashmir in North India that connected Srinagar to Leh in Ladakh. It was one of the only two roads that connected Ladakh with the rest of India, the other being Leh-Manali Highway. The Srinagar-Leh Highway was declared as National Highway in 2006.
The route from Uri to Srinagar was part of old NH1A before renumbering.
- NH 1A near Kashmir
Heavy snowfall on the highest passes can block traffic, cutting Leh from Srinagar for some six months each year. During springtime, the Border Roads Organisation (BRO) plows snow and repairs damages caused by landslides. Zoji La pass received reportedly some 18 m (59 ft) of snowfall in 2008.
For most part, NH 1D transited through extremely treacherous terrain and followed the historic trade route along the Indus River, thus giving modern travelers a glimpse of villages which are historically and culturally important. The road generally remained open for traffic from early June to mid-November. The total length of NH 1 was 422 km (262 mi).
The two highest passes on NH 1D include Fotu La at 4,108 m (13,478 ft) elevation and Zoji La at 3,528 m (11,575 ft) elevation.
Dras, located some 170 km (110 mi) from Srinagar at elevation of 3,249 m (10,659 ft), is the first major village over the Zoji La pass. The village is inhabited by a population of mixed Kashmiri and Dard origins, having a reputation of being the second coldest permanent inhabited spot in the world after Siberia, with temperatures dropping to −45 °C (−49 °F).
In the 19th century, the route was improved, allowing pony caravans to pass. This work was started after Dogra General Zorawar Singh conquered Ladakh region from the Sikh Empire during 1836–1840 Trans-Himalayan campaign and princely state of Jammu and Kashmir was formed when the British sold Kashmir to maharaja Gulab Singh in 1846 Treaty of Amritsar.
During the 1950s, tensions rose in Ladakh region. China secretly built a military road spanning some 1,200 km (750 mi) from Xinjiang to western Tibet, which was discovered by Indian in 1957 and confirmed by Chinese maps showing the road in 1958. The political situation eroded, culminating in 1962 in the Sino-Indian War.
The road on the Chinese side gave PLA an advantage as a reliable supply line, giving the Indian Army impetus to build a road for supply and mobilisation of their own troops. The building started from Sringar in 1962, reaching Kargil in two years. This was the basis of modern Srinagar-Leh Highway. Building the road was hazardous task, given the challenging geographical location, and maintaining the road is still an unenviable task.
Restrictions on civilian traffic were lifted in 1974.
- List of National Highways in India (by Highway Number)
- National Highways Development Project
- Origins of the Sino-Indian border dispute
- Sino-Indian War
- Government of Jammu and Kashmir, Ladakh Autonomous Hill Development Council Kargil (April 2006). "Monthly News Letter". Archived from the original on 17 July 2011. Retrieved 30 June 2009.
- ExpressIndia.com (23 April 2006). "Srinagar-Leh road gets National Highway status". ExpressIndia.com.
- Jyoteeshwar Pathik (1997). Glimpses of History of Jammu & Kashmir. New Delhi, India: Anmol Publications. p. 117. ISBN 81-7488-480-7. Retrieved 30 June 2009.
- Henry Osmaston (Editor), Philip Denwood (Editor) (1993). Recent Research on Ladakh 4 & 5: Proceedings of the Fourth and Fifth International Colloquia on Ladakh. Delhi, India: Motilal Banarsidass. p. 236. ISBN 978-81-208-1404-2. Retrieved 30 June 2009.CS1 maint: Extra text: authors list (link)
- "Rationalisation of Numbering Systems of National Highways" (PDF). Ministry of Road Transport and Highways. Retrieved 28 April 2018.
- Thaindian.com (20 March 2009). "Srinagar-Leh highway to reopen after remaining closed for six months". Retrieved 30 June 2009.
- Thaindian.com (28 March 2008). "Srinagar-Leh highway to reopen after remaining closed for six months". Retrieved 30 June 2009.
-  Ladakh, the Road journey
- "Archived copy". Archived from the original on 10 April 2009. Retrieved 20 July 2011.CS1 maint: Archived copy as title (link) Details of National Highways in India-Source-Govt. of India
- Hilary Keating (July – August 1993). "The Road to Leh". Saudi Aramco World. Houston, Texas: Aramco Services Company. 44 (4): 8–17. ISSN 1530-5821. Retrieved 29 June 2009.