Meanwhile, the 27.3-km Skudai Highway was constructed in Johor Bahru as another upgrade of route 1 in the south. The toll road had two toll plazas at the Senai and at the Johor Causeway. It was constructed by the Malaysian Public Works Department (JKR) before being handed over to Malaysian Highway Authority (LLM) in November 1985. The extensive urbanisation of Johor Bahru however had rendered the Skudai Highway FT1 to be unsuitable to become a part of the North–South Expressway E2, as the Skudai Highway FT1 is not a controlled-access highway. Nevertheless, the toll road and the North–South Expressway were acquired by Projek Lebuhraya Utara-Selatan Berhad. However, various parties especially residents of Senai and political parties urged that the toll collection be abolished due to the lack of toll-free alternative. As a result, the toll collection at Senai toll plaza was abolished on 1 March 2004. After the toll collection at Senai was abolished, the highway had been maintained by the Malaysian Public Works Department. The Johor Causeway toll plaza remained in operation until 2008, when the former Johor Bahru CIQ Complex was closed and replaced by the Sultan Iskandar CIQ Complex, and the access to the new CIQ complex and the Johor–Singapore Causeway is provided by the Johor Bahru Eastern Dispersal Link Expressway.