The Johor-Singapore Causeway (length: 1038 m) was designed by Messrs Coode, Fizmaurice, Wilson and Mitchell of Westminster, while the construction contract was awarded to Topham, Jones & Railton Ltd of London. It started in 1909 as a railway link by Johor State Railway to connect Johor Bahru to Singapore, then the administrative headquarters of British interests in South-East Asia. Construction of the road section started in 1919 and was completed in 1923.