Kinzie Street Bridges

3D Satellite, looking south

(Bridge Hunter, Historic Bridges)

I didn't realize until I looked at the satellite image that this bridge has just one leaf.

Chicago History Museum via DNAinfo
Kinzie Street Bridge rotated across Chicago River, Chicago, Illinois, November 13, 1899.
[This view must be looking north because the swing bridge in the background appears to be on an angle with respect to the river channel. So it would be the Milwaukee bridge.

 

The swing bridge behind the C&NW bridge in the foreground is a Kinzie Street bridge. Given the hump in the middle, it is newer than the above bridge. So this site had at least two generations of swing bridges.

David Daruszka posted
Chicago & North Western passenger train crosses the Chicago River after departing the Wells Street Station. The bridge is noted today for the fact it is always in the raised position with the exception of a once a year lowering for a hi-rail truck to cross. This is done to retain active status of the rail line and bridge. Photograph from the Chicago & North Western Historical Society.

 

Chicago History Museum via DNAinfo
[I hope that road surface is mud and not squished road apples from horses. The bridge was built in 1909 while horses still ruled the road. The bridge was rehabilitated in 1999.]

Update:

Xavier Quintana posted
November 1964: A view (looking south) of the North Branch of the Chicago River, taken from the Grand Avenue bridge. (Vintage Tribune)
Brandon McShane C&NW bridge (down) and Milwaukee Road's rarely photographed swing bridge to the left. The Milwaukee line eventually went past Wrigley Field to the west.
[The truss span we easily see is the street bridge. But you can see the counterweight links of the railroad bridge peaking above the street bridge on the left and the end of the RR truss peaking out past the end of the road truss. Note the control tower past the end of the RR truss.]