Kimanis–Keningau Highway

Kimanis–Keningau Highway is a state highway in Sabah, Malaysia, connecting the town of Kimanis to Keningau. It also acts as an alternative for Federal Route 500 from Kota Kinabalu to Tenom which is longer. The 53-kilometre (33 mi) highway was initially started as a main logging road before being upgraded to a full two-lane highway. The highway was opened to traffic in 2006.

Even though the highway boasts for its relatively short length and very good condition, it is notorious for its very steep gradients along the way, ranging from 10% to about 25%, making the Kimanis–Keningau Highway as the steepest highway in Malaysia.[2][3] As a result, climbing road lanes are provided at steep sections.

An interesting feature of this highway is the presence of a gravity hill induced by optical illusion, located 11 kilometres (6.8 mi) from Keningau. It is reported that at the gravity hill, there is a slope which appears as a downhill slope, but is actually an uphill slope.

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