I did some field work with a smart level. Here are my field notes followed by some comments:
September 4, 2007 7:26 a.m.
7601 E Main ne corner, cross 8% lay notice, door will hold @ notches not heavy
Drive Entrance break 9.2%(6')+9.2%(long), scary, but no scrape
7715 E Main, cross 7.5% back...