Colorado State Highway 74
... that to prevent flooding on Colorado State Highway 74, 34-foot high walls were constructed along the road?
... that to prevent flooding on <b id="mwAw8"><a href="./Colorado_State_Highway_74" id="mwAxA" rel="mw:WikiLink" title="Colorado State Highway 74">Colorado State Highway 74</a></b>, 34-foot high walls were constructed along the road?