▁increased . ▁It ▁is ▁constant ▁and ▁equals ▁ 4 . 2 %, ▁while ▁elev ation ▁grade ▁of ▁the ▁bridge ▁is ▁constant ▁at ▁ 5 . 7 %, ▁s lop ing ▁down ▁towards ▁V rb ov sko . ▁The ▁bridge ▁is ▁a ▁box ▁gir der ▁structure ▁supporting ▁the ▁deck ▁across ▁three ▁sp ans . ▁The ▁south bound ▁bridge ▁sp ans ▁are ▁ ▁+ ▁ ▁+ ▁. ▁Its ▁pi ers ▁are ▁ ▁and ▁ ▁tall . ▁The ▁north bound ▁bridge ▁sp ans ▁are ▁ ▁+ ▁ ▁+ ▁. ▁Its ▁pi ers ▁are ▁ ▁and ▁ ▁tall . ▁All ▁of ▁the ▁pi ers ▁compr ise ▁box ▁cross ▁section , ▁ ▁( per pend icular ▁to ▁the ▁bridge ▁axis ) ▁by ▁ ▁to ▁ ▁( parallel ▁to ▁the ▁bridge ▁axis . ▁The ▁parallel ▁bridge ▁structures ▁were ▁built ▁simultaneously . ▁ ▁Tra ffic ▁volume ▁Tra ffic ▁is ▁regularly ▁counted ▁and ▁reported ▁by ▁Aut oc esta ▁R ije ka – Z ag reb , ▁operator ▁of ▁the ▁vi ad uct ▁and ▁the ▁A 6 ▁motor way ▁where ▁the ▁structure ▁is ▁located , ▁and ▁published ▁by ▁H rv ats ke ▁c este . ▁Sub st ant ial ▁variations ▁between ▁annual ▁( A AD T ) ▁and ▁summer ▁( AS DT ) ▁traffic ▁volumes ▁are ▁attributed ▁to ▁the ▁fact ▁that ▁the ▁bridge ▁car ries ▁substantial ▁tour ist ▁traffic ▁to ▁the ▁Adri atic ▁resort s . ▁The ▁traffic ▁count ▁is ▁performed ▁using ▁analysis ▁of ▁motor way ▁to ll ▁ticket ▁sales . ▁ ▁See ▁also ▁List ▁of ▁brid ges ▁by ▁length ▁ ▁References