orthotropic deck
...that using an orthotropic deck instead of a concrete deck reduced the mass of the Golden Gate Bridge by 11,160 metric tons?
...that using an <b id="mwBk8"><a href="./Orthotropic_deck" id="mwBlA" rel="mw:WikiLink" title="Orthotropic deck">orthotropic deck</a></b> instead of a <a href="./Concrete" id="mwBlE" rel="mw:WikiLink" title="Concrete">concrete</a> deck reduced the mass of the <a href="./Golden_Gate_Bridge" id="mwBlI" rel="mw:WikiLink" title="Golden Gate Bridge">Golden Gate Bridge</a> by 11,160 metric <a href="./Ton" id="mwBlM" rel="mw:WikiLink" title="Ton">tons</a>?