The City of Calgary at their finest.
Let's see...
Crew # 1 dug up the temporary sidewalk
Crew # 2 dropped off the forms
Crew # 3 set the forms
Crew # 4 poured the dirt into the forms
Crew # 5 packed down the new dirt
Crew # 6 hasn't arrived yet
This is all for less than 10 feet of sidewalk and no 2 crews worked on the same day