The site was selected as it had views of all of the main shipping channels of Sydney Harbour.
The 87 metre tower was built overlooking Walsh Bay and Darling Harbour.
It had a cylindrical reinforced concrete column with a circular stainless steel and glass cabin with three floors.
[1] With the transfer of container shipping operations to Port Botany, the tower closed in 2011, with ownership transferred from Roads & Maritime Services to the Barangaroo Delivery Authority in 2012.
[3][4][5] Media related to Sydney Harbour Control Tower at Wikimedia Commons