I tried to claim damages from VicRoads when their contractors instructed me to drive over wet asphalt, which ruined my tyres. I provided all the details precisely, time and date etc. I heard back a few months later - VicRoads said there were no works going on at that time in that place. So either I made the whole thing up (including photo evidence), or they are conniving pricks.
TL; DR - I don't rate your chances of getting a cent from VicRoads