Roof garden: The morning of the big day

Today is our roof garden's Big Day: the day when all the soil is being craned up onto the roof and spread.  By evening, other than some clean up (slated for Monday), the garden should be ready for plants.  The green roof guys were here until 8pm last night, trying to finish laying the stones on the patio.  As you can see from the following photos, they still have a couple to do. 

Here's what the roof looked like first thing this morning:

The right side of the garden has all its irrigation piping in place:

Here's hoping that all goes smoothly today!