steel dams
...that there were only 3 steel dams built in the United States, although at one time steel dams were thought to offer many competitive advantages over other types of dam?
...that there were only 3 <b id="mwAfg"><a href="./Steel_dam" id="mwAfk" rel="mw:WikiLink" title="Steel dam">steel dams</a></b> built in the United States, although at one time steel dams were thought to offer many competitive advantages over other types of <a href="./Dam" id="mwAfo" rel="mw:WikiLink" title="Dam">dam</a>?