Helped build two of these roughly the same size and height in Sussex New Brunswick, Canada to be used as head frames for a new potash mine. I like how you guys broke the shifts into 12 on and 24 off with 3 crews. We did it with 2 crews and 12 hr shifts. Kept pouring one night right through a post tropical storm with over 100mm of rain and 100km hr winds and completed each one in under 40 days apiece. . Before the mine even started to produce potash the price per ton plummeted and the mine closed and never reopened… a 3 billion dollar catastrophe.