<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">pier foundations</topic></authority><related type="narrower"><topic>pier foundation components</topic></related><related type="broader"><topic>foundations</topic></related><variant type="other"><topic>caisson foundations</topic></variant><variant type="other"><topic>foundations, caisson</topic></variant><variant type="other"><topic>foundations, pier</topic></variant><variant type="other"><topic>pier foundation</topic></variant><variant type="other"><topic>post foundations</topic></variant> <note xml:lang="en"><![CDATA[ Foundations consisting of concrete, brick, or stone piers which deliver the load to a support stratum; the piers are usually more substantial than piles and are not clustered. Now commonly produced by excavating within a caisson. ]]></note></mads>