$1.$ Given the following differential leveling fieldnotes showing IFS measurements on the tops of four grades stakes set along the centerline of a proposed road, complete the gray cells in the following chart indicting how far to measure down on the grade stakes $($Stations $\backslash (1+00,2+00\backslash )$ and $\backslash (3+00\backslash ))$ or what to mark on the stake $($Station $\backslash (4+00\backslash ))$ based on th given proposed Finished Grades at the location.

$\backslash$begin$\{$tabular$\}\{|$c$|$c$|$c$|$c$|$c$|$c$|\}$

$\backslash$hline Station & $\backslash$begin$\{$tabular$\}\{$c$\}$

Elevation $\backslash \backslash$

on top of $\backslash \backslash$

grade stake $\backslash \backslash$

$($calculated $\backslash \backslash$

from the $\backslash \backslash$

field notes$)$

$\backslash$end$\{$tabular$\}$ & $\backslash$begin$\{$tabular$\}\{$c$\}$

Proposed $\backslash \backslash$

Finished $\backslash \backslash$

Grade $\backslash \backslash$

$($FG$)\backslash \backslash$

Elevation

$\backslash$end$\{$tabular$\}$ & $\backslash$begin$\{$tabular$\}\{$c$\}$

Difference $\backslash \backslash$

$($FG$-$Top $\backslash \backslash$

Stake$)$

$\backslash$end$\{$tabular$\}$ & $\backslash$begin$\{$tabular$\}\{$c$\}$

Measure $\backslash \backslash$

Down

$\backslash$end$\{$tabular$\}$ & Mark $\backslash \backslash$

Stake

$\backslash$end$\{$tabular$\}$