" ▁and ▁was ▁built ▁so ▁that ▁a ▁single ▁tim ber ▁could ▁be ▁extracted ▁and ▁rep a ired ▁without ▁disturb ing ▁the ▁rest ▁of ▁the ▁bridge . ▁Old ▁Wal ton ▁Bridge ▁was ▁completed ▁in ▁August ▁ 1 7 5 0 ▁and ▁acquired ▁some ▁fame , ▁mer iting ▁an ▁article ▁in ▁the ▁Gent le man ' s ▁Magazine , ▁a ▁report ▁in ▁Daniel ▁De fo e ' s ▁Tour ▁in ▁ 1 7 5 3 ▁and ▁a ▁painting ▁by ▁Can alet to ▁in ▁ 1 7 5 4 . ▁ ▁The ▁painting , ▁which ▁shows ▁the ▁ro c oco - style ▁of ▁this ▁bridge , ▁is ▁in ▁D ul wich ▁Picture ▁Gallery . ▁ ▁Queens ▁College , ▁Cambridge ▁record ▁that ▁its ▁Mathemat ical ▁Bridge ▁res emb les ▁this ▁much ▁gr ander ▁structure ▁also ▁by ▁E ther idge ▁— ▁unlike ▁Wal ton ▁Bridge , ▁E ther idge ' s ▁bridge ▁there ▁has ▁been ▁re built ▁twice ▁to ▁his ▁design , ▁having ▁encountered ▁minor ▁wood ▁rot , ▁but ▁has ▁never ▁col lapsed . ▁ ▁The ▁tim ber ▁structure ▁stood ▁approximately ▁ 3 3 ▁years , ▁that ▁is , ▁until ▁ 1 7 8 3 . ▁A ▁report ▁on ▁the ▁condition ▁of ▁the ▁bridge ▁in ▁ 1 7 7 8 ▁suggested ▁that ▁decay ▁in ▁the ▁wooden ▁frame ▁made ▁it ▁un su itable ▁for ▁use ▁and ▁it ▁was ▁dis m ant led ▁five ▁years ▁later . ▁ ▁Second ▁bridge ▁ ▁The ▁second ▁bridge ▁made ▁of ▁stone ▁( and ▁internally ▁of ▁brick ) ▁was ▁permitted , ▁with ▁additional ▁to ll