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reading a level rod like this one is simple once you have mastered a few basic patterns Iamp;#39;m Todd Horton for the Illinois professional land surveyors Association first of all notice that the typical level rod is graduated in decimal feet you can see here that the fractional parts of a foot are labeled one through nine if this rod were graduated in inches you would also see the numbers 10 and 11 below the red number one we use decimal feet to simplify our computations the very bottom end of the rod is the zero end thus all measurements we take are height above the surface on which the rod sits now take a close look at the marks on the rod each black mark has the same height as each white space this is very different from a measuring tape you see with this system we take our readings at the edges of the marks and spaces the regular mark Heights make it possible for us to read the rod a few hundred feet away now hereamp;#39;s an important distinction the reading we take on this ty