War fortifications recognised

摘要

Engineering Heritage National Landmark status has been given to World War 2 coastal defence facilities known as the Rottnest Island Fortress. In the mid 1930s the Australian govern-ment commenced an upgrade of its fixed coastal defence artillery batteries. On the west coast priority was given to the defence system for the Port of Fremantle. The most important component comprised a battery with two 9.2 inch guns and a battery with two 6 inch guns, with associated infrastructure, constructed on Rottnest Island. Responsibility for the design and con-struction of the facilities rested with Australian Army engineering and artillery units. Most of the work was done by private contractors.