<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31460152</termId><termName>pontoon bridges</termName><termType>PT</termType><termNote><![CDATA[ Bridges, generally temporary, with decks supported on low flat-bottomed or hollow floats, often used by the military for river crossings. Permanent pontoon bridges may be used for crossings where it is not feasible to suspend a bridge from anchored piers. ]]></termNote><termCreatedDate>2026-03-30 21:03:51</termCreatedDate><relation><relationType>UF</relationType><termId>31460153</termId><termName>bridges, pontoon</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31460154</termId><termName>floating bridges</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31460155</termId><termName>ponton bridges</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31460156</termId><termName>pontoon bridge</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31460157</termId><termName>pontoon-bridges</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31442834</termId><termName>bridges by construction</termName><termType>PT</termType></relation></term>  </Zthes>