▁now ▁the ▁A 3 1 6 ▁road , ▁was ▁given ▁Royal ▁Ass ent ▁on ▁ 3 ▁August ▁ 1 9 2 8 , ▁and ▁construction ▁began ▁in ▁ 1 9 3 0 . ▁The ▁construction ▁of ▁the ▁road ▁required ▁two ▁new ▁brid ges ▁to ▁be ▁built , ▁at ▁T wick en ham ▁and ▁Ch is wick . ▁The ▁proposal ▁was ▁author ised ▁in ▁ 1 9 2 8 ▁and ▁construction ▁began ▁in ▁the ▁same ▁year . ▁The ▁bridge , ▁along ▁with ▁the ▁newly ▁built ▁T wick en ham ▁Bridge ▁and ▁the ▁re built ▁Ham pton ▁Court ▁Bridge , ▁was ▁opened ▁by ▁Edward , ▁Prince ▁of ▁Wales ▁on ▁ 3 ▁July ▁ 1 9 3 3 , ▁and ▁the ▁fer ry ▁service ▁was ▁perman ently ▁closed . ▁ ▁Design ▁ ▁The ▁new ▁bridge ▁was ▁designed ▁in ▁rein for ced ▁concrete ▁by ▁architect ▁Sir ▁Herbert ▁Baker ▁and ▁engineer ▁Alfred ▁D ry land , ▁with ▁additional ▁input ▁from ▁Cons id ère ▁Const ru ctions , ▁at ▁the ▁time ▁Britain ' s ▁leading ▁special ist ▁in ▁rein for ced ▁concrete ▁construction . ▁ ▁The ▁bridge ▁has ▁concrete ▁found ations ▁supporting ▁a ▁five - arch ▁cell ular ▁rein for ced ▁concrete ▁super structure . ▁The ▁deck ▁is ▁supported ▁by ▁a ▁conce aled ▁lattice ▁of ▁columns ▁and ▁be ams ▁rising ▁from ▁the ▁arch ed ▁super structure . ▁The ▁structure ▁is ▁faced ▁with ▁ 3 , 4 0 0 ▁tons ▁of ▁Port land ▁stone , ▁except ▁for ▁under ne ath ▁the ▁arch es . ▁The ▁bridge ▁is ▁ ▁long ,