THE GRADE FOR A FOOTING IS SET USING A BUILDERS LEVEL. THE BOTTOM OF THE FOOTING WILL BE AT ELEVATION 94′. THE BACKSIGHT TO THE BENCHMARK (ELEVATION 100′) HAS A ROD READING OF 4.7′. 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′. THE BACKSIGHT TO THE BENCHMARK (ELEVATION 100′) HAS A ROD READING OF 4.7′. WHAT SHOULD THE ROD READING BE FOR THE BOTTOM OF THE FOOTING?