You might have heard, we had a flood.  We’re fine.  Our houses weren’t even close to being touched by floodwaters, but I am once again grateful for Geology 101, the course for non-majors at Beloit College, where Prof. Stenstrom drilled into our heads that we should be geologically aware when buying a house. My front yard is 4 feet above the sidewalk, with a concrete retaining wall, and the alley drops off steeply about 2 houses down hill from me. Even if the levee hadn’t held, I’d probably have been fine.  However, others were not so lucky. Our neighbors on…