f icial ly ▁similar , ▁does ▁not ▁share ▁the ▁grace ful ▁fl ares ▁at ▁the ▁ends ▁of ▁each ▁arch ▁which ▁make ▁the ▁har bour ▁bridge ▁so ▁distinct ive , ▁▁ ▁It ▁is ▁the ▁sixth ▁longest ▁sp anning - arch ▁bridge ▁in ▁the ▁world ▁and ▁the ▁tall est ▁steel ▁arch ▁bridge , ▁meas uring ▁ ▁from ▁top ▁to ▁water ▁level . ▁It ▁was ▁also ▁the ▁world ' s ▁wid est ▁long - span ▁bridge , ▁at ▁ ▁wide , ▁until ▁construction ▁of ▁the ▁new ▁Port ▁Mann ▁Bridge ▁in ▁V ancouver ▁was ▁completed ▁in ▁ 2 0 1 2 . ▁ ▁The ▁Sydney ▁Har bour ▁Bridge ▁was ▁added ▁to ▁the ▁Australian ▁National ▁Heritage ▁List ▁on ▁ 1 9 ▁March ▁ 2 0 0 7 ▁and ▁to ▁the ▁New ▁South ▁Wales ▁State ▁Heritage ▁Register ▁on ▁ 2 5 ▁June ▁ 1 9 9 9 . ▁ ▁Str ucture ▁ ▁The ▁southern ▁end ▁of ▁the ▁bridge ▁is ▁located ▁at ▁Daw es ▁Point ▁in ▁The ▁Ro cks ▁area , ▁and ▁the ▁northern ▁end ▁at ▁M ils ons ▁Point ▁in ▁the ▁lower ▁North ▁Sh ore ▁area . ▁There ▁are ▁six ▁original ▁lan es ▁of ▁road ▁traffic ▁through ▁the ▁main ▁road way , ▁plus ▁an ▁additional ▁two ▁lan es ▁of ▁road ▁traffic ▁on ▁its ▁eastern ▁side , ▁using ▁lan es ▁that ▁were ▁formerly ▁tram ▁tracks . ▁Ad j acent ▁to ▁the ▁road ▁traffic , ▁a ▁path ▁for ▁ped est rian ▁use ▁runs ▁along ▁the ▁eastern ▁side ▁of ▁the ▁bridge , ▁whilst ▁a ▁dedicated ▁path ▁for ▁b icy cle ▁use ▁only