Geelong-to-Warrnambool rail line Regional rail boom is full steam ahead Upgrades to Colac’s rail line forged ahead this month during a construction blitz. By Billy HigginsOctober 25, 2021 $100M upgrade for Colac rail line Colac train campaigner Brian Crook is ecstatic the State Government will allocate $100 million to upgrade the Geelong-to-Warrnambool rail line to allow more train services for Colac district travellers. By Colac Herald ContributorMay 1, 2017