CDOT Bridge Crews on Deck for Safety. Bridge Lift and Boat Run. July 11, 2020.
CDOT bridge inspection and monitoring crews take center stage during every bridge lift along the South and Main Branches of the Chicago River. Here are the best photos from the event of July 11, 2020.
Bascule bridge features include single or double leaves, single or double decks, warning lights and barricade arms, bridge tender’s houses and chimes warning of when a bridge is about to lift. The term ‘bascule’ is from the French meaning “see-saw”. It is a principle of balance and strength based on the triangle, a shape you will see in every aspect of a bridge from its roadway deck to its truss web.
The next article features the second part of Saturday’s bridge lift, going from Lake Street to DuSable Bridge at Michigan Avenue.