Calculating zone areas

Hi all, I am trying to set up the advanced area of the zones to enter the zone area.
In a few of our yard areas, there are 2 sprinkler zones covering a single area. For instance, we have a 73’ x 9’ boulevard with two parallel zones, one at the street, and one at the sidewalk. Each side has 8 x 10’ sprinklers, arranged in a square layout. (That is the original layout drawing - the 10Q sprinkler on the left by the sidewalk is no more.)
Is the area for each zone 4½’ x 73’?

When I have adjacent zones with overspray and same nozzles, I assume the common border splits the distance between the zones (as you have assumed). I’d say your measurement is reasonable.

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