2 ▁found ▁the ▁remains ▁of ▁a ▁second ▁round ▁arch ▁regarded ▁as ▁ 1 2 th ▁century ▁work . ▁The ▁current ▁concrete ▁arch ▁bridge ▁was ▁built ▁in ▁ 1 9 1 1 ▁and ▁extended ▁in ▁ 1 9 7 2 . ▁It ▁car ries ▁the ▁A 3 9 ▁road ▁over ▁the ▁Br ue . ▁ ▁Alter ation ▁of ▁route ▁Before ▁the ▁ 1 3 th ▁century ▁the ▁direct ▁route ▁to ▁the ▁sea ▁at ▁High bridge ▁was ▁blocked ▁by ▁gra vel ▁banks ▁and ▁pe at ▁near ▁West h ay . ▁The ▁course ▁of ▁the ▁river ▁partially ▁enc irc led ▁G last on bury ▁from ▁the ▁south , ▁around ▁the ▁western ▁side ▁( through ▁Beck ery ), ▁and ▁then ▁north ▁through ▁the ▁Pan borough - B le ad ney ▁gap ▁in ▁the ▁Wed more - W oo key ▁Hills , ▁to ▁join ▁the ▁River ▁A xe ▁just ▁north ▁of ▁Ble ad ney . ▁This ▁route ▁made ▁it ▁difficult ▁for ▁the ▁officials ▁of ▁G last on bury ▁Ab bey ▁to ▁transport ▁produce ▁from ▁their ▁out lying ▁est ates ▁to ▁the ▁Ab bey , ▁and ▁when ▁the ▁valley ▁of ▁the ▁river ▁A xe ▁was ▁in ▁flo od ▁it ▁back ed ▁up ▁to ▁flo od ▁G last on bury ▁itself . ▁S omet ime ▁between ▁ 1 2 3 0 ▁and ▁ 1 2 5 0 ▁a ▁new ▁channel ▁was ▁constructed ▁west wards ▁into ▁Me are ▁Pool ▁north ▁of ▁Me are , ▁and ▁further ▁west wards ▁to ▁Mark ▁Mo or . ▁It ▁then ▁divided ▁into ▁two ▁channels , ▁one