▁the ▁flo od ▁plain ▁to ▁the ▁south ▁of ▁the ▁river . ▁ ▁The ▁bridge ▁was ▁fre ed ▁of ▁to ll s ▁in ▁about ▁ 1 8 7 0 . ▁ ▁The ▁third ▁bridge ▁was ▁dam aged ▁during ▁the ▁Second ▁World ▁War ▁in ▁ 1 9 4 0 ▁leading ▁to ▁a ▁permanent ▁weight ▁restriction . ▁ ▁To ▁alle vi ate ▁this ▁a ▁fourth ▁temporary ▁bridge ▁was ▁constructed ▁and ▁the ▁third ▁bridge ▁was ▁re leg ated ▁to ▁use ▁by ▁cycl ists ▁and ▁ped est ri ans . ▁Rob b ins ▁described ▁it ▁in ▁ 1 9 5 3 ▁as ▁" an ▁un gra cious ▁structure ▁of ▁iron ▁lattice ▁g ird ers " ▁in ▁his ▁county ▁history . ▁ ▁Ass isted ▁by ▁the ▁weight ▁restriction ▁and ▁metal ▁design ▁it ▁was ▁longer - last ing ▁than ▁the ▁previous ▁two ▁brid ges ▁but ▁was ▁finally ▁demol ished ▁in ▁ 1 9 8 5 . ▁ ▁Four th ▁bridge ▁ ▁The ▁fourth ▁bridge ▁was ▁constructed ▁in ▁ 1 9 5 3 ▁on ▁the ▁down stream ▁side ▁of ▁the ▁old ▁bridge , ▁using ▁a ▁construction ▁designed ▁by ▁A . M . ▁Hamilton ▁in ▁ 1 9 3 0 ▁and ▁is ▁called ▁a ▁Call ender - H amilton ▁bridge . ▁The ▁fourth ▁bridge ▁was ▁retained ▁for ▁use ▁by ▁cycl ists ▁and ▁ped est ri ans ▁when ▁the ▁fifth ▁bridge ▁was ▁completed ▁in ▁ 1 9 9 9 . ▁ ▁Fif th ▁bridge ▁In ▁ 1 9 9 9 , ▁while ▁the ▁fourth ▁bridge ▁remained ▁standing ▁for ▁use ▁by ▁ped est ri