There are many bridge over the Singapore River. Let me start a series about it.
This is Elgin Bridge built in 1929. In Hokkien it is known as "thih tiau-kio", and in Cantonese, "thit tiu-khiu", both mean iron suspension bridge.
The existing bridge was completed in 1929, and was named after a Governor-General of India, Lord Elgin (1862–1863). As this was the first bridge to be built across the river, the two roads leading to it were named North Bridge Road and South Bridge Road accordingly.
It was previously a wooden bridge.
References: Wikipedia. National Library.