Boon Lay MRT station is an above-ground Mass Rapid Transit (MRT) station on the East West line in Jurong West, Singapore. Located in Jurong West Central, Boon Lay station is one of the three stations that serve Jurong West New Town; the other two are Lakeside MRT station and Pioneer MRT station. Together with Boon Lay Bus Interchange and Jurong Point Shopping Mall, they form the Boon Lay Integrated Public Transport Hub. The station was the western terminus of the East West line prior to the opening of Joo Koon MRT station in 2009. Boon Lay station is proposed to become an interchange with the Jurong Region line, which is slated for completion in 2027. It will be the southern terminus of the Main Branch of the Jurong Region line from 2027 to 2029 before Jurong Pier MRT station opens. Trains entering service at this station will terminate at Tawas via Bahar Junction. History Construction began on 6 January 1987 and trackwork was completed on October 1989. The station opened on 6 July 1990 as the western terminus of the East West line, and was the last station to be opened on the original MRT network. Initially, the station had the station code 'W12', which was later changed to 'EW27' on 31 July 2001 when the MRT network map was revamped by the then Minister for Communications and Information Technology, Mr Yeo Cheow Tong. The original name was "Jurong West" before the construction began and was renamed to Boon Lay. As Boon Lay and Jurong West Neighbourhoods 7 and 8 were developed later, the station had deferred their need to construct the station until 6 January 1987. The last MRT viaduct to be constructed was from Lakeside to Boon Lay on 11 August 1989. Boon Lay extension (period 1) The station was built to serve residents living in the then-undeveloped Jurong West New Town and people working in the then mostly-undeveloped Tuas and Jurong Industrial Estate, since it was the only MRT station serving these areas, covering the areas westwards from Boon Lay. As these areas developed, passenger volume increased, leading to much congestion at this station during peak hours. However, the situation was improved when the Boon Lay MRT extension commenced service on 28 February 2009 with the opening of Pioneer and Joo Koon. With Pioneer serving the western portion of Jurong West New Town and Pioneer Sector, and