(CBS) – The CTA conducted a test run Monday of the Yellow Line tracks that will reopen to commuters later this week.

CBS 2’s Mike Parker and photojournalist Adrian Ramirez were aboard.

The tracks into and out of Skokie have been shut down since May, when tracks collapsed because of embankment erosion.

Several weeks later, the tracks have been replaced, and the embankment is looking pretty good. Everything’s in place for the 4:30 a.m. Friday reopening of the Yellow Line. CTA officials says it’s safe.

“Folks have been crawling all over these tracks for months,” says CTA infrastructure officer Chris Bushell.

Yellow Line riders, who have had to make due with shuttle buses, will get a week’s worth of free rides beginning Friday.