The opposite spur corridor from the "T-stairs" which were central to the entire building. The Technology corridor was a long corridor with woodwork classes on one side (with band saws and clamps), and the engineering/CAD/technology classes on the other side. The corridor above this one had half a dozen classrooms dedicated to Biology. I didn't take that class and so hardly ever went up there (maybe 3 or 4 times!?) in my entire 6 years of going to that school.