Chicago s Movable Bridges | The history of Bascule Bridges

Click this link to make some cash for giving your opinion! https://www.inflcr.co/SHFo9 Thanks YouGov for sponsoring A bascule bridge (also referred to as a drawbridge or a lifting bridge) is a moveable bridge with a counterweight that continuously balances a span, or leaf, throughout its upward swing to provide clearance for boat traffic. It may be single- or double-leafed. The name comes from the French term for balance scale, which employs the same principle. Bascule bridges are the most common type of movable span because they open quickly and require relatively little energy to operate, while providing the possibility for unlimited vertical clearance for marine traffic. Chapters: 02:03 Why Chicago Needed Bridges 03:19 How shipping canals transformed Chicago’s waterway 05:30 Chicago’s First movable bridge 06:56 Chicago’s fist swinging bridge (Rush Street Bridge) 07:38 Chicago’s first vertical lift bridge 07:59 Chicago bascule bridges 09:07 Van Buren Street bridge history 10:41 How Chicago’s bridges changed road traffic (A) 11:40 Chicago’s Track lift bridges 12:19 The Largest Bascule bridge in the world - The CTT Railroad bridge 13:05 Michigan avenue DuSable bridge 14:51 Why Chicago has the best bridges on earth Join this channel to get access to perks: https://www.youtube.com/channel/UCzIZ8HrzDgc-pNQDUG6avBA/join IT’S HISTORY - Weekly tales of American Urban Decay as presented by your host Ryan Socash. » CONTACT For brands, agencies and sponsorships, please contact us at itshistory@thoughtleaders.io https://www.facebook.com/ITshistoryX https://www.instagram.com/ryansocash/ » CREDIT Scriptwriter - Brent Sapp Editor - Patrycja Klimczuk Host - Ryan Socash Sponsor - Thanks, YouGov, for sponsoring this video! » SOURCES https://www.facebook.com/groups/itshistory/ » NOTICE Some images may be used for illustrative purposes only - always reflecting the accurate time frame and content. Events of factual error / mispronounced word/spelling mistakes - retractions will be published in this section.