Bjorøy Tunnel
... that when construction of the Bjorøy Tunnel in Norway hit a section of sand, a new tunneling method had to be developed to continue?
... that when construction of the <b id="mwBGA"><a href="./Bjorøy_Tunnel" id="mwBGE" rel="mw:WikiLink" title="Bjorøy Tunnel">Bjorøy Tunnel</a></b> in <a href="./Norway" id="mwBGI" rel="mw:WikiLink" title="Norway">Norway</a> hit a section of sand, a new tunneling method had to be developed to continue?