for those traevlling down to The Bool on Sunday and don't know already. The geelong bypass is open and is an easy run now. i did a trip down to Warrnambool a month or so ago and i think i sussed it out. (if i have this incorrect, someone please correct me)
when you get to Corio (where the freeway used to finish) keep going on the freeway until you see the "Ceres" exit, take this exit and then turn right going across the freeway and that is the Barrabool road, a few km's and your there. from Melbourne it should knock off at least 20 minutes i reckon.
See ya there