▁be ams ▁cant ile ver ▁roughly ▁ ▁beyond ▁the ▁pi ers ▁and ▁columns ▁to ▁support ▁the ▁side wal ks ▁and ▁bal ustr ades . ▁ ▁The ▁ped est rian ▁guard rails ▁on ▁the ▁approaches ▁to ▁the ▁bridge ▁are ▁solid ▁concrete ▁pan els , ▁while ▁those ▁along ▁the ▁deck ▁take ▁the ▁form ▁of ▁tub ular ▁steel ▁rail ings , ▁linked ▁by ▁vertical ▁steel ▁bars ▁and ▁supported ▁by ▁concrete ▁columns . ▁E ight ▁of ▁these ▁ ▁columns ▁rise ▁from ▁each ▁deck ▁span , ▁pun ctu ated ▁by ▁t aller , ▁heav ier ▁columns ▁above ▁the ▁pi ers , ▁which ▁are ▁built ▁to ▁support ▁street ▁lights . ▁ ▁See ▁also ▁List ▁of ▁cross ings ▁of ▁the ▁Colorado ▁River ▁National ▁Register ▁of ▁Historic ▁Places ▁list ings ▁in ▁Tra vis ▁County , ▁Texas ▁List ▁of ▁brid ges ▁on ▁the ▁National ▁Register ▁of ▁Historic ▁Places ▁in ▁Texas ▁ ▁References ▁ ▁External ▁links ▁ ▁Category : National ▁Register ▁of ▁Historic ▁Places ▁in ▁Austin , ▁Texas ▁Category : B rid ges ▁completed ▁in ▁ 1 9 4 2 ▁Category : B rid ges ▁in ▁Austin , ▁Texas ▁Category : City ▁of ▁Austin ▁Historic ▁Land marks ▁Category : Ro ad ▁brid ges ▁on ▁the ▁National ▁Register ▁of ▁Historic ▁Places ▁in ▁Texas ▁Category : 1 9 4 2 ▁establish ments ▁in ▁Texas ▁Category : B rid ges ▁over ▁the ▁Colorado ▁River ▁( Tex as ) ▁Category : Con crete ▁brid ges ▁in ▁the ▁United ▁States ▁Category : Open - sp and rel ▁deck ▁arch ▁brid ges ▁in ▁the ▁United ▁States <0x0A> </s> ▁"