The SerembanâÂÂPort Dickson Highway (SPDH; ) is an expressway in Negeri Sembilan, Malaysia. It was built to shorten the travelling distance from Seremban to Port Dickson and acts as an alternative route for Federal Route 53 which has dangerous corners along the route. The long expressway was opened to traffic in 1998 and the first concessionaries were SerembanâÂÂPort Dickson Highway (SPDH) Sdn Bhd (a member of Melewar Corporation Berhad). Today the expressway is a part of PLUS Expressways network.
The expressway shares its Kilometre Zero with the old SerembanâÂÂPort Dickson Road FT53; hence, the expressway begins at KM7 of Mambau Interchange near Seremban.
The SerembanâÂÂPort Dickson Highway (SPDH) implements an opened toll system. Tolls only have to be paid when entering the expressway, except when travelling to Seremban, where tolls will be collected at the Mambau Toll Plaza.
As part of an initiative to facilitate faster dissipation of traffic at both Mambau and Lukut Toll Plazas, all toll transactions will be conducted electronically via PLUSMiles cards, Touch 'n Go cards or SmartTAGs starting 1 June 2015. Later, RFID, Malaysia's own radio-frequency identification was introduced in the toll plazas.
(Since 1 February 2020)