Fourteenth Street Bridge
...that when built in 1868, Louisville's Fourteenth Street Bridge was the longest iron bridge in the United States?
...that when built in 1868, <a href="./Louisville,_Kentucky" id="mwBr4" rel="mw:WikiLink" title="Louisville, Kentucky">Louisville</a>'s <b id="mwBr8"><a class="mw-redirect mw-disambig" href="./Fourteenth_Street_Bridge" id="mwBsA" rel="mw:WikiLink" title="Fourteenth Street Bridge">Fourteenth Street Bridge</a></b> was the longest iron <a href="./Bridge" id="mwBsE" rel="mw:WikiLink" title="Bridge">bridge</a> in the United States?