Posts Tagged ‘bridge

26
Jun
09

Michigan Avenue Bridge Tower

333. Tower

333. Tower

In the early 1900s a few of the city planners in Chicago thought it would be advantageous to connect North Michigan Avenue with South Michigan Avenue via a bridge across the Chicago River. It took three years (1917-20) to complete the project, but they didn’t simply create a bridge, they created an architectural masterpiece.

Evidently this bridge is an engineering wonder, but my reference on the Michigan Avenue Bridge described it in engineering terminology and I cannot begin to explain why it is such a feat. I did come away with one fact I find impressive though. Evidently the bridge, a double-decker affair, is so well balanced it only takes two 108-horsepower motors to open and close each 3,750-ton extension. That is efficient! I motor across the lake in a fishing boat that has a bigger engine!

28
Feb
09

Crossing the Mississippi River

342. Underneath

342. Underneath

I took this photograph of the bridge that crosses the Mississippi River, linking the state of Wisconsin to Dubuque, Iowa. I took the photograph from underneath the superstructure.




Copyright Notice

All photography and written material under copyright. © 2008-09 by Bo Mackison, all rights reserved.
March 2017
M T W T F S S
« Jul    
 12345
6789101112
13141516171819
20212223242526
2728293031