▁The ▁to ll ▁for ▁all ▁south bound ▁vehicles ▁was ▁increased ▁to ▁$ 3 ▁in ▁March ▁ 2 0 0 4 . ▁ ▁Origin ally ▁it ▁cost ▁a ▁car ▁or ▁motor cycle ▁six ▁p ence ▁to ▁cross , ▁a ▁horse ▁and ▁r ider ▁being ▁three ▁p ence . ▁Use ▁of ▁the ▁bridge ▁by ▁b icy cle ▁rid ers ▁( prov ided ▁that ▁they ▁use ▁the ▁cycle way ) ▁and ▁by ▁ped est ri ans ▁is ▁free . ▁Later ▁govern ments ▁c apped ▁the ▁fee ▁for ▁motor cy cles ▁at ▁one - qu arter ▁of ▁the ▁passenger - ve h icle ▁cost , ▁but ▁now ▁it ▁is ▁again ▁the ▁same ▁as ▁the ▁cost ▁for ▁a ▁passenger ▁vehicle , ▁although ▁quarter ly ▁flat - fe e ▁passes ▁are ▁available ▁which ▁are ▁much ▁che aper ▁for ▁frequent ▁users . ▁Origin ally ▁there ▁were ▁six ▁to ll ▁bo oth s ▁at ▁the ▁southern ▁end ▁of ▁the ▁bridge , ▁these ▁were ▁replaced ▁by ▁ 1 6 ▁bo oth s ▁in ▁ 1 9 5 0 . ▁The ▁to ll ▁was ▁charged ▁in ▁both ▁directions ▁until ▁ 4 ▁July ▁ 1 9 7 0 ▁when ▁changed ▁to ▁only ▁be ▁applied ▁to ▁south bound ▁traffic . ▁ ▁In ▁July ▁ 2 0 0 8 ▁a ▁new ▁electronic ▁to ll ing ▁system ▁called ▁e - TAG ▁was ▁introduced . ▁The ▁Sydney ▁Har bour ▁T unnel ▁was ▁converted ▁to ▁this ▁new ▁to ll ing ▁system ▁while ▁the ▁Sydney ▁Har bour ▁Bridge ▁itself ▁had ▁several ▁c ash ▁lan es . ▁The ▁electronic ▁system ▁as