The grade for a footing is set using a builders level. The bottom of the footing will be at elevation 94.00′. The backsight to the benchmark(elev.100.00′) has a rod reading of 4.70′. What should the rod reading be for the bottom of the footing?

The grade for a footing is set using a builders level. The bottom of the footing will be at elevation 94.00′. The backsight to the benchmark(elev.100.00′) has a rod reading of 4.70′. What should the rod reading be for the bottom of the footing?

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