The Portage Lake Lift Bridge in Michigan. This is the world's heaviest and widest double-decked vertical-lift bridge.

Fullsize image: https://diqn32j8nouaz.cloudfront.net...e_fullsize.jpg



2:38 video:


More: https://en.wikipedia.org/wiki/Portage_Lake_Lift_Bridge

Previously:

Ponte Morandi bridge demolition - GIF
Sailing a boat under a bridge - GIF and video
Tandem crane collapse while lifting bridge section on barge - videos
Finnish army combat engineers cross makeshift bridge - GIF
Railroad bridge catches fire and collapses - GIF and photo
Tank bridge - GIF
Lego bridge girder machine - GIF