Kahekili Highway is a scenic, but twisty road. It is maintained by the county as county route 340. The highway takes visitors over Maui's northwest coast. It is between the area where the state changes to the county maintenance at 6.9 miles. The highway ends at 16.3 miles, which is where it becomes Honoapiilani Highway or state route 30. The southeast section of the highway is fairly unexceptional.
It took until the 90s for the highway to be paved and open for rental cars. It is considered a "backdoor" highway for west Maui. At times it can be an alternate route from west Maui, such as when an accident occurs on the main highway. Kahekili Highway is depended on by residents in Kahahuloa Village. Some suggestions have been made to widen the road in order to handle diverted traffic better, but as of 2001 nothing came of the suggestion.
There are those who prefer to keep it as it has always been: a small one lane stretch with a few two lane areas. It is a twisted path that provides a lot of scenery to view, which is why many take it on holiday but ignore it for speedy travel.