Secor
... that workers had to somersault to safety when the Secor Bridge collapsed in 1911?
... that workers had to somersault to safety when the <b id="mwBrw"><a href="./Secor,_Iowa" id="mwBr0" rel="mw:WikiLink" title="Secor, Iowa">Secor</a></b> Bridge collapsed in 1911?