As long as your talking Civil, if you want to stay in WA you will have no problems finding a job at all, you will probably find that you have several job offers by the beginning of your final year, and if you want there is a lot of potential to work while you completing your degree, which is what I did in my final year.
In WA you will find work all over the state and you will travel quite alot, whether that be working on the mines for extended periods on a single large project, or many more shorter trips for severl projects if you go into consulting.
There is potential to travel overseas especially if you get into some of the larger international companies. But there is so much work in WA at the moment you will find most companies want you to stay here.
It is generally 9-5 if your in the city, but if you are out on big mining projects you will most likely do longer hours. Like any job you will have to put in some extra hours to get things finished on time sometimes.
As i mentioned before I can only really speak from a consultants POV, things are different (and less interesting IMO if your in construction).
Thanks for the response







The last 10-15 years has seen massive expansion and the next 10-15 years we will be doubling tripling etc mining output. Sites in WA already have plans to triple their infrastructure.