In late July, the Tennessee Department of Transportation began an ambitious project with a snappy name — Fast Fix 8 — to replace eight interstate bridges near downtown Nashville in a matter of weeks.

Stretches of interstate connected by the bridges are being closed on scattered weekends through the end of October. So far, the Fast Fix 8 appears to be on or ahead of schedule.

TDOT says the time of road closures could have been much longer without an innovative engineering plan, utilizing prefabricated sections of roadway and very large cranes, including one brought in from Canada. In fact, workers have had to use cranes to build some of the other cranes.

TDOT released an update on the project this week, along with a couple of time-lapse videos.

Here (with a rocking hair metal soundtrack) you see a section of roadway removed and replaced on the Herman Street overpass:

And this one shows how the prefabricated panels are being put in place: