▁Map ▁of ▁the ▁Federal ▁District ▁in ▁ 1 9 2 3 ▁ ▁Category : Form er ▁sub div isions ▁of ▁Brazil ▁Category : 1 8 9 1 ▁establish ments ▁in ▁Brazil ▁Category : 1 9 6 0 ▁dis est ab lish ments ▁in ▁Brazil ▁Category : St ates ▁and ▁territ ories ▁established ▁in ▁ 1 8 9 1 ▁Category : St ates ▁and ▁territ ories ▁dis est ab lished ▁in ▁ 1 9 6 0 <0x0A> </s> ▁Al mann ask ar ð sg ö ng ▁is ▁a ▁tunnel ▁along ▁Route ▁ 1 , ▁located ▁just ▁east ▁of ▁the ▁town ▁of ▁Hö fn ▁( Hor na f jör ð ur ) ▁in ▁the ▁Eastern ▁Region ▁of ▁I cel and . ▁▁ ▁The ▁construction ▁of ▁the ▁tunnel ▁began ▁in ▁March ▁ 2 0 0 4 , ▁the ▁break through ▁was ▁in ▁October ▁that ▁same ▁year , ▁and ▁the ▁tunnel ▁was ▁opened ▁on ▁June ▁ 2 4 , ▁ 2 0 0 5 . ▁The ▁tunnel ▁runs ▁through ▁ 1 , 1 5 0 ▁metres ▁of ▁solid ▁rock ▁and ▁some ▁ 1 6 2 ▁metres ▁of ▁concrete ▁port als , ▁bringing ▁the ▁total ▁length ▁to ▁ 1 , 3 1 2 ▁metres ▁( although ▁a ▁sign ▁r ounds ▁it ▁off ▁to ▁ 1 , 3 0 0 ▁m ). ▁The ▁tunnel ▁is ▁two ▁lan es ▁wide , ▁with ▁three ▁passing ▁areas ▁for ▁emer gency ▁traffic . ▁The ▁southern ▁tunnel ▁entrance ▁is ▁located ▁at ▁ 3 9 ▁m ▁above ▁sea ▁level ▁whilst ▁the ▁northern ▁tunnel ▁entrance ▁is