▁Petersburg . ▁▁ ▁bridge ▁length ▁- ▁ 6 2 0 ▁m , ▁ ▁length ▁of ▁central ▁span ▁- ▁ 3 2 0 ▁m , ▁ ▁bridge ▁under cel ar ance ▁- ▁ 3 5 ▁m . ▁ ▁C able - st ay ed ▁bridge ▁over ▁the ▁Pet rov sky ▁Fair way ▁ ▁For ▁the ▁bridge ▁over ▁Pet rov sky ▁fair way ▁an ▁interesting ▁engineering ▁solution ▁was ▁suggested ▁– ▁a ▁fan ▁arrangement ▁of ▁the ▁cable - st ays . ▁Such ▁an ▁inter tw ining ▁of ▁the ▁threads ▁provides ▁the ▁bridge ▁an ▁original , ▁« air y » ▁out look . ▁▁▁ ▁bridge ▁length ▁- ▁ 5 8 0 ▁m , ▁ ▁eng th ▁of ▁central ▁span ▁- ▁ 2 4 0 ▁m , ▁ ▁bridge ▁under clear ance ▁- ▁ 2 5 ▁m . ▁ ▁Double - deck ▁bridge ▁over ▁the ▁Sea ▁channel ▁ ▁The ▁super structure ▁of ▁the ▁bridge ▁is ▁a ▁ 6 m - deep ▁tr uss ▁with ▁sp ans ▁of ▁u o ▁to ▁ 1 6 8 m , ▁The ▁bridge ▁cross es ▁Kan on ers ky ▁Island ▁and ▁the ▁main ▁channel ▁to ▁the ▁port ▁at ▁a ▁maximum ▁clear ance ▁of ▁ 5 2 ▁m . ▁It ▁is ▁the ▁highest ▁bridge ▁in ▁St . ▁Petersburg . ▁▁ ▁In ▁December ▁ 2 0 1 9 , ▁a ▁nuclear - power ed ▁ice bre aker ▁Ar kt ika ▁successfully ▁passed ▁under ▁the ▁bridge , ▁the ▁height ▁of ▁which ▁coinc ides ▁with ▁the ▁height ▁of ▁the ▁ice bre aker . ▁▁ ▁ship ▁clear ance