Saturday, November 1, 2025

1855+56+69+72+1910-72 Polk Street SUC Bridge on South Branch

(Archived Bridge Hunter; Bridge Hunter; no Historic Bridges; Chicago Loop; Satellite)

SUC = Strauss Underneath Counterweight

Image via BridgeHunter
"Built 1910 to replace 1872 swing bridge; removed 1972"

The Polk Street Bridge is in the raised position in this photo. Obscured by the smoke on the left was the Pennsy Freight House, the tall building north of Polk Street was the Marshal Field River Warehouse and the buildings on the right are more freight houses.
History's Mirror posted
[I'm not copying the description because it is an example of AI gone wrong. Basically, if a statement is not a platitude, it is wrong. The dredge is in the old channel, not the new one. And "Polk and Taylor Streets" implies an intersection, but they are parallel streets. The photo below shows that the photo was taken from Taylor, and we are looking at Polk Street Bridge.
But it is a great photo of the freight houses and of Polk Street Bridge.]
Franklin Campbell shared
Dennis DeBruler: The dredge is digging in the old channel, not creating the new one. But this is a terrific photo of Polk Street Bridge.

This photo confirms that the train shed that we see in the above photo was for the Grand Central Terminal. And because it includes the Pennsy freight house, I could confirm the streets as Taylor looking at Polk.
B&O C&O Grand Central, Chicago Terminal 1890-1971. posted via Dennis DeBruler
[Taylor Street is at the bottom and Polk Street is the next one upstream.]

We are look West because that is the Marshal Field River Warehouse on the right.
DN-0056536, Chicago Daily News negatives collection, Chicago History Museum via BridgeHunter

ForgottenChicago
The first swing bridge was built in 1869. That one was destroyed by the 1871 fire so a second swing bridge was built in 1872. The trunnion bridge was built in 1910, and it was designed by Joseph Strauss. The Marshall Field River Warehouse was built in 1904.The postal service acquired the warehouse in 1974 and removed it 20 years later to make room for their new post office.

Chicagology

King Iron Bridge Co., 1874 Catalog via Chicagology
The 1872 bridge was a tubular wrought iron swing bridge.