Historical Photo of the Week: The intersection of 92nd Street and Mackinaw Avenue in Chicago on October 3, 1923, showing a westward view of work on the Calumet intercepting sewer system.
(For future reference, I have come across "Racine Pumping Plant" and "pumping station at 68th near South Shore Drive." While Googling for them, I found a map of Chicago's supply water pumping stations. This looks like the Racine Pumping Plant. I didn't find anything around 68th and South Shore.)Google found a map of MWRD's CSO's outflows, but the contents is blank even thought the sidebar looks valid. "CSO Locations" in the sidebar is also blank. Backing off to their CSO level gives me a useful page. Clicking the "Stickney Area" link gives me list that includes the Racine Ave Pump Station as number 142. This list includes other pumping stations such as Nashville Avenue (#189). But I could not find anything that looks like a pump station there. Also on the list was Southwest Side 13A (#146) and Westchester (#150).
A reference that records "diversions" from the pump stations ("Summary of Activity at Major Pump Stations" link on the CSO Overview page) lists the following pump stations: North Branch, Racine Avenue, Westchester, 95th Street, 122nd Street and 125th Street. (Again, it is a real shame their map page is not working.)