National Highway 1 or National Road No.1 (10001) is one of the national highways of Cambodia

Cambodia

Cambodia , officially known as the Kingdom of Cambodia, is a country located in the southern portion of the Indochina Peninsula in Southeast Asia...

. With a length of 167.1 km (103.8 mi), it connects the capital of Phnom Penh

Phnom Penh

Phnom Penh is the capital and largest city of Cambodia. Located on the banks of the Mekong River, Phnom Penh has been the national capital since the French colonized Cambodia, and has grown to become the nation's center of economic and industrial activities, as well as the center of security,...

 with Bavet, Svay Rieng Province on the border with Vietnam

Vietnam

Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...

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In 1981, Cambodia opened a newly repaired section of National Highway 1 to the Vietnamese border, the road having suffered damage over the war years.

In Phnom Penh the road converges with the National Highway 2

National Highway 2 (Cambodia)

National Highway 2 or National Road No.2 is one of the national highways of Cambodia. With a length of , it connects the capital of Phnom Penh with Vietnam....

 near Monivong Bridge

Monivong Bridge

Monivong Bridge is a heavily trafficked bridge in Phnom Penh, Cambodia. It bridges the Bassac River near the end of National Highway 2 to southern Cambodia and lies along the National Highway 1 which connects the city to eastern Cambodia and Vietnam....

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