▁and ▁followed ▁a ▁former ▁railway ▁line ▁of ▁the ▁Great ▁Northern ▁Railway ; ▁the ▁by pass ▁was ▁opened ▁ 1 6 ▁months ▁ahead ▁of ▁schedule . ▁The ▁grade - separ ated ▁G ilt bro ok ▁Inter change ▁is ▁with ▁the ▁A 6 0 9 6 , ▁for ▁Il k eston , ▁and ▁the ▁large ▁G ilt bro ok ▁Ret ail ▁Park , ▁and ▁I KE A . ▁ ▁East wood ▁to ▁Am berg ate ▁ ▁The ▁road ▁then ▁rever ts ▁to ▁a ▁single ▁carriage way ▁at ▁the ▁Derby shire ▁border , ▁going ▁under ne ath ▁the ▁j unction ▁with ▁the ▁A 6 0 8 , ▁entering ▁Am ber ▁Valley . ▁The ▁road ▁then ▁by pass es ▁Lang ley ▁Mill ▁to ▁the ▁south , ▁and ▁ ▁passes ▁the ▁j unction ▁ 2 6 ▁indust ra il ▁park ▁due ▁to ▁open ▁summer ▁ 2 0 1 9 . ▁The ▁A 6 1 0 ▁then ▁enters ▁Wood link in , ▁this ▁particular ▁stretch ▁of ▁the ▁A 6 1 0 ▁has ▁gained ▁not or iety ▁in ▁the ▁past ▁for ▁road ▁acc idents ▁due ▁to ▁the ▁road ▁being ▁particularly ▁wind y . ▁The ▁single ▁carriage way ▁Lang ley ▁Mill ▁By - Pass ▁opened ▁in ▁the ▁early ▁ 1 9 8 0 s . ▁The ▁road ▁then ▁asc ends ▁into ▁C od nor , ▁passing ▁the ▁Th orn ▁Tree ▁Inn ▁at ▁Wood link in . ▁ ▁At ▁C od nor , ▁the ▁route ▁turns ▁right ▁at ▁a ▁T - J unction ▁with ▁the ▁A 6 0 0 7 ▁near ▁the