Callahan Tunnel http://wamc.org en Wall panels removed from Boston's Callahan Tunnel http://wamc.org/post/wall-panels-removed-bostons-callahan-tunnel <p></p><p><span style="line-height: 1.5;">&nbsp;&nbsp;</span></p><p>BOSTON (AP) — State transportation officials have decided to take down all 2,800 reflective wall panels from inside the Callahan Tunnel because it's more cost effective than conducting frequent tests.</p><p> Thu, 17 Jan 2013 18:00:00 +0000 Associated Press 55928 at http://wamc.org Wall panels removed from Boston's Callahan Tunnel