Old Chicago Photos - ChicagoPhotoShop
In 1925 the Great Lakes Dredge and Dock Company worked at the intersection of South Water Street and Wabash Avenue to create the bi-level Wacker Drive.

Photographer: Chicago Architectural Photographic Co.
Source: Chicago Historical Society (ICHi-37922) 

http://encyclopedia.chicagohistory.org/pages/11198.html

In 1925 the Great Lakes Dredge and Dock Company worked at the intersection of South Water Street and Wabash Avenue to create the bi-level Wacker Drive.

Photographer: Chicago Architectural Photographic Co.
Source: Chicago Historical Society (ICHi-37922)

http://encyclopedia.chicagohistory.org/pages/11198.html