West Coast Highway, Singapore

West Coast Highway (Chinese: 西海岸大路; Malay: Lebuhraya Pantai Barat; Tamil: மேற்கு கடற்கரை நெடுஞ்சாலை) is a major arterial road in Singapore which links Jurong industrial estate and Clementi New Town to the city. It is an at-grade road from its junction with Pandan Loop and West Coast Road to its interchange with Pasir Panjang Road, where it becomes a grade-separated viaduct; the viaduct merges with Keppel Road before its interchange with Ayer Rajah Expressway. The total length of the highway is 11 km. The viaduct is newer than the at-grade section, having been completed in 2006.

Despite what its name may suggest, the speed limit on the highway is less than that of an expressway. The highway also has a few traffic light junctions, something that expressways do not have. The at-grade section of the highway is a three-lane dual carriageway, and the viaduct is a two-lane dual carriageway with a 1-metre hard shoulder. At a length of 5 km, the viaduct is the longest in Singapore.