The Kandahar-Herat Highway is 557 kilometres (346.1 mi) road

Road

A road is a thoroughfare, route, or way on land between two places, which typically has been paved or otherwise improved to allow travel by some conveyance, including a horse, cart, or motor vehicle. Roads consist of one, or sometimes two, roadways each with one or more lanes and also any...

 that links the cities of Kandahar

Kandahar

Kandahar is the second largest city in Afghanistan, with a population of about 512,200 as of 2011. It is the capital of Kandahar Province, located in the south of the country at about 1,005 m above sea level...

 and Herat

Herat

Herāt is the capital of Herat province in Afghanistan. It is the third largest city of Afghanistan, with a population of about 397,456 as of 2006. It is situated in the valley of the Hari River, which flows from the mountains of central Afghanistan to the Karakum Desert in Turkmenistan...

 in Afghanistan

Afghanistan

Afghanistan , officially the Islamic Republic of Afghanistan, is a landlocked country located in the centre of Asia, forming South Asia, Central Asia and the Middle East. With a population of about 29 million, it has an area of , making it the 42nd most populous and 41st largest nation in the world...

. This highway is part of a larger road network, the "Ring Road", and was first constructed by the Soviets in the 1960s.

In October 2004 reconstruction of the highway began and was expected to be completed by the end of 2006. The United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 is funding a 326 kilometers portion of the road, Saudi Arabia

Saudi Arabia

The Kingdom of Saudi Arabia , commonly known in British English as Saudi Arabia and in Arabic as as-Sa‘ūdiyyah , is the largest state in Western Asia by land area, constituting the bulk of the Arabian Peninsula, and the second-largest in the Arab World...

 is funding a 115km section and Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

is contributing to rebuilding 116km. The U.S. portion of the Kandahar-Herat highway has reduced travel time between those two major cities from 10 hours to 4.3 hours.