HistoricBridges.org Menu: HistoricBridges.org Menu:


HistoricBridges.org: Bridge Browser

Photos: Michigan Avenue Bridge

Original / Full Size Photos

Uncredited photos on this page taken by: Nathan Holth. Unless stated in a caption, all photos are Copyright with All Rights Reserved. Learn about reuse of our photos.

Divider

PhotoPhoto

View of lowest level of bridge tender house.

Divider

PhotoPhotoPhotoPhotoPhoto

Middle levels of bridge tender house.

Divider

Photo

Top level of bridge tender house.

Divider

PhotoPhotoPhotoPhotoPhotoPhoto

Stairways.

Divider

PhotoPhotoPhotoPhotoPhotoPhoto

Views showing the large circular window.

Divider

PhotoPhotoPhoto

Additional windows.

Divider

PhotoPhotoPhotoPhotoPhoto

Riveted roof trusses as seen from top level.

Divider

Photo

Ceiling.

Divider

PhotoPhotoPhotoPhoto

Riveted structural support beams.

Divider

PhotoPhoto

Illinois brand on riveted structural support beams.

Divider

PhotoPhotoPhotoPhotoPhoto

Looking south down Michigan Avenue from top level of bridge tender building.

Divider

PhotoPhotoPhotoPhotoPhoto

Looking northbound up Michigan Avenue from top level of bridge tender building.

Divider

PhotoPhotoPhoto

Looking down at the bridge deck from top level of bridge tender building.

Divider

Photo

Southeast bridge tender building as viewed from the top level of the southwest bridge tender building.

Divider

Photo

Overview of part of the room which is essentially the inside of the bridge and includes the drive system and the counterweight tail pit.

Divider

Photo

Bridge interior: View showing rack with gear in foreground.

Divider

Photo

Bridge interior: In the foreground is a gear that is part of the drive system that connects to the pinion. The rack and pinion are visible in the background through the hole in the big gear.

Divider

PhotoPhotoPhotoPhotoPhoto

Views of the main trunnion.

Divider

Photo

Extra counterweight blocks being stored. Changes in the weight of the bridge due to repairs and other variable conditions sometimes require the adjustment of the counterweight system.

Divider

PhotoPhoto

Detail photos showing the end of the bascule leaf which would include the counterweight.

Divider

Photo

View of the trusses leading up to the very end of the bascule leaf and counterweight.

Divider

PhotoPhotoPhotoPhotoPhotoPhotoPhotoPhotoPhoto

Various views showing the gearing and braking system, located alongside the rack and pinion.

Divider

PhotoPhotoPhotoPhotoPhoto

Views showing the very back of the room where the motors and additional gearing is located.

Divider

PhotoPhotoPhoto

Exhibit, the old throttle control for controlling the speed during lifting and lowering the bridge.

Divider

PhotoPhotoPhotoPhotoPhotoPhotoPhoto

Photo Credit: Historic American Engineering Record

Exhibit, additional bridge/electrical controls and meters.

Divider

PhotoPhoto

Photo Credit: Historic American Engineering Record

Views inside operable bridge tender house control room.

Divider

PhotoPhotoPhotoPhoto

Photo Credit: Historic American Engineering Record

Machinery basement.

Divider

Photo

Photo Credit: Historic American Engineering Record

Trunnion and trunnion girder.

Divider

Divider

Back
Home
Top

Divider

About - Contact

Divider