【参考・引用元】
https://www.aokiuva.com/xbbc100ukpppever.html
https://ja.wikipedia.org/wiki/イザムバード・キングダム・ブルネル
https://www.jsce.or.jp/contents/hakase/tunnel/tunnel05.html
https://ja.wikipedia.org/wiki/グレート・イースタン_(蒸気船)
https://ja.wikipedia.org/wiki/グレート・ウェスタン鉄道
https://ja.wikipedia.org/wiki/ポントカサステ水路橋と運河
https://tringhistory.tringlocalhistorymuseum.org.uk/Canal/index.htm
https://www.drifters.co.uk/history-of-the-uk-canals/
https://en.wikipedia.org/wiki/Bridgewater_Canal
http://library.jsce.or.jp/jsce/open/00902/2015/35-0045.pdf
https://waterways.org.uk/about-us/news/the-evolution-of-the-narrow-boat
https://www.waterwaysholidays.com/choose_location.htm
http://www.bbinhunstanton.co.uk/machine-tools/machine-tools-and-people-why-the-industrial-revolution-began-in-england/
https://www.plaskynastoncanalgroup.org/canals/
https://en.wikipedia.org/wiki/Ellesmere_Canal
https://www.pontcysyllte-aqueduct.co.uk/attraction/pontcysyllte-aqueduct-4/
https://www.pontcysyllte-aqueduct.co.uk/business-community/boat-trips-boat-hire/
https://www.canalworld.net/forums/index.php?/topic/96803-pontcysyllte-aqueduct-how-many-spans/https://www.kajima.co.jp/gallery/const_museum/hashi/gijutsu/article/hashi_g_07.html
https://kotobank.jp/word/閘門-63254
http://www.dohkenkyo.or.jp/techno/history.htm
https://ja.wikipedia.org/wiki/メナイ吊橋