Government of Western Australia, PWD

The Public Works Department (PWD) was the State Government Agency of Western Australia, which was charged with providing and maintaining public infrastructure such as dams, water supplies, schools, hospitals, harbours and other public buildings. The department is no longer operational, having its responsibilities reassigned to other State Government Departments and corporate entities since 1985.
The department was responsible for the construction of Fremantle Harbour and many other smaller regional jetties and wharves. Day labour from the department also ran the facilities of the harbours. The department was also responsible for conducting surveys of rivers and coastal features.

Source: https://en.wikipedia.org