Federal Route 22, Asian Highway Route AH150 (formerly Federal Route A4), is a 310-kilometre (193 mi) ^[3] federal highway in Sabah, Malaysia, which is also a component of the larger Pan Borneo Highway network. It starts from Tamparuli and ends at Sandakan. The section running from Tamparuli to Ranau, which is known as Tamparuli-Ranau Highway, crosses the Crocker Range just to the south of Mount Kinabalu.

Quick Facts Federal Route 22, Route information ...

Federal Route 22
Route information
Part of AH150
Length	310 km (190 mi)
Existed	1968[1]–present
History	Completed in 1982[2]
Major junctions
West end	Tamparuli, Tuaran
Major intersections	FT 1 AH150 Federal Route 1 Interior North-South Highway SA2 Jalan Tambunan FT 13 Federal Route 13
East end	Sandakan
Location
Country	Malaysia
Primary destinations	Kundasang Ranau(Continues as Interior North-South Highway Telupid Beluran
Highway system
Highways in Malaysia Expressways Federal State

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The construction of the Federal Route 22 began in 1968 as a joint project between the Malaysian federal government with the government of Australia, known as the "Malaysian-Australian Road Project" (MARP). It was one of the two projects being jointly carried out with the Australian government, together with the Pergau Dam project in Kelantan, with the total cost of RM25 million for both projects.^[4] The construction was done in two phases - the construction of the first phase from Sandakan to Telupid began in 1968 and completed in 1971, while the second phase from Telupid to Ranau was constructed in 1971 and completed in 1972. Both sections were paved in 1973 and were completed in 1978.^[1] Meanwhile, the final section of the FT22 highway from Ranau to Tamparuli was constructed right after the Sandakan-Ranau section was opened to motorists. The Tamparuli-Ranau section was completed in 1982.^[5][2] The highway was coded as A4 according to the old numbering scheme,^[5] but was later changed to FT22 in 1996 to standardise the route numbering system with Peninsular Malaysia.^[3]