The Johor–Singapore Causeway (Malay: Tambak Johor) is a 1,056-metre causeway that links the city of Johor Bahru in Malaysia across the Straits of Johor to the town of Woodlands in Singapore. It serves as a road, rail, and pedestrian link, as well as water piping into Singapore.
The causeway is connected to the Sultan Iskandar Customs, Immigration and Quarantine Complex in Johor Bahru. The new checkpoint replaced the Causeway Checkpoints on December 16, 2008. The complex is linked to Johor Bahru's Inner Ring Road which intersects with the Skudai Highway (Federal Route ). On the Singapore side, the causeway leads to the Woodlands CIQ Checkpoint, which replaced an older Woodlands Checkpoint in 1998. It then connects with the Bukit Timah Expressway.
The causeway carries 60,000 vehicles on a typical day, with particularly bad traffic congestion on the eve of public holidays.