Mittraphap Road (, , ) or Highway 2 (, ) is one of the four primary

highway A highway is any public or private road or other public way on land. It is used for major roads, but also includes other public roads and public tracks. In some areas of the United States, it is used as an equivalent term to controlled-acces ...

s in

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is b ...

, along with Phahonyothin Road (Highway 1),

Sukhumvit Road Sukhumvit Road ( th, ถนนสุขุมวิท, , ), or Highway 3 ( th, ทางหลวงแผ่นดินหมายเลข 3), is a major road in Thailand, and a major surface road of Bangkok and other cities. It follows ...

(Highway 3), and

Phetkasem Road Phet Kasem Road (, , )ราชบัณฑิตยสถาน. ''อ่านอย่างไร และ เขียนอย่างไร ฉบับราชบัณฑิตยสถาน.'' พิมพ์ครั้งที่ ...

(Highway 4). It runs from

Saraburi Saraburi City (''thesaban mueang'') is the provincial capital of Saraburi Province in central Thailand. In 2020, it had a population of 60,809 people, and covers the complete ''tambon'' Pak Phriao of the Mueang Saraburi district. Location Sa ...

Nong Khai Nong Khai ( th, เทศบาลเมืองหนองคาย, ) is a city in northeast Thailand. It is the capital of Nong Khai province. Nong Khai city is located in Mueang Nong Khai district. Nong Khai lies on the Mekong River, near ...

. The road was originally built from Khorat to

by the United States in 1955–1957 at a cost of US$20 million to supply its northeastern military bases. It is the first highway in Thailand to meet international standards, and the first highway in Thailand to use both

asphalt Asphalt, also known as bitumen (, ), is a sticky, black, highly viscous liquid or semi-solid form of petroleum. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term ...

and

concrete Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most wid ...

. It received the name "Thanon Mittraphap" on 20 February 1957. The name literally means "Friendship Road". It is the main road that connects

Isan Northeast Thailand or Isan ( Isan/ th, อีสาน, ; lo, ອີສານ; also written as Isaan, Isarn, Issarn, Issan, Esan, or Esarn; from Pali ''īsānna'' or Sanskrit ईशान्य ''īśānya'' "northeast") consists of 20 prov ...

(northeastern Thailand) across the Dong Phaya Yen Range. The highway begins at

, Phahonyothin Road (Highway 1) junction. It passes through the provinces of

Nakhon Ratchasima Nakhon Ratchasima ( th, นครราชสีมา, ) is one of the four major cities of Isan, Thailand, known as the "big four of Isan". The city is commonly known as Korat (, ), a shortened form of its name. It is the governmental seat of ...

Khon Kaen Khon Kaen ( th, ขอนแก่น, ) is one of the four major cities of Isan, Thailand, also known as the "big four of Isan", the others being Udon Thani, Nakhon Ratchasima, and Ubon Ratchathani. It is the capital of Khon Kaen province and ...

Udon Thani Udon Thani ( th, อุดรธานี, ) is a city in Isan ( Northeast Thailand), the capital of Udon Thani Province and with a population of approximately 430,000 in its urban area the 7th largest city in the country. The city municipality ...

, and ends in

, where it links with the Thai-Lao Friendship Bridge to Laos. Image:Mittaphap.gif, Six-lane expanded Mittraphap Road near Lam Takhong, Nakhon Ratchasima Image:Mittraphap Highway in Nong Khai.JPG, Mittraphap Highway in Nong Khai File:Thai-Lao-Freundschaftsbruecke.jpg, Thai-Lao Friendship Bridge

References

National highways in Thailand Nakhon Ratchasima province {{Thailand-road-stub