Beaver Dam Railroad
... that a tunnel constructed in 1901 by the Beaver Dam Railroad of Tennessee was originally too low for trains to pass through?
... that a tunnel <i id="mwCB8">(pictured)</i> constructed in 1901 by the <b id="mwCCA"><a href="./Beaver_Dam_Railroad" id="mwCCE" rel="mw:WikiLink" title="Beaver Dam Railroad">Beaver Dam Railroad</a></b> of <a href="./Tennessee" id="mwCCI" rel="mw:WikiLink" title="Tennessee">Tennessee</a> was originally too low for trains to pass through?