The Infrastructure Show's Episodes
With Host Professor Joseph Schofer of Northwestern University.
Click on the link below the description to begin streaming the podcast. To subscribe to The Infrastructure Show podcasts or find in iTunes, see the clicks at the top of the page.
Gantry places precast concrete bridge segments for new elevated structure, courtesy of Chicago Transit Authority.
(click for larger image)
Rebuilding Chicago Transit Authority’s Red and Purple Rail Lines
Posted February 1, 2025, Length: 21:33
The Chicago Transit Authority’s $2.1 billion Red and Purple Line Modernization Project (RPM) is rebuilding a 5.6-mile elevated rail rapid transit structure and four stations, ensuring structural integrity, expanding capacity, and improving ride quality along a corridor on the North Side of Chicago. Included in this six-year project is removal of a failing embankment and returning land to the community.
Here to talk with us about this project is Grace Ohs, Chicago Transit Authority RPM vice president and project lead. Grace earned her BS in Civil Engineering from the University of Illinois.
The Infrastructure Show is sponsored by Northwestern University.
Descriptions of photos at top of page, from left to right:
Bayonne Bridge, from Bayonne, NJ to Staten Island, NY;
the Tom Moreland Interchange in Atlanta, GA;
Dworshak Dam, in Clearwater County, ID;
a transmission substation in Orem, UT.
All photos courtesy of Wikipedia.