Determine the discharge, to the nearest $\backslash (0\mathrm{.}1\backslash$mathrm$\{$~m$\}3/\backslash$mathrm$\{$s$\}\backslash ),$ of a $29\mathrm{.}2-$m long, box$-$rectangular culvert having a square$-$edged inlet. The culvert height is $0\mathrm{.}5$ m and width is $1$ m $.$ The Manning roughness coefficient is $0\mathrm{.}017.$ The inlet invert elevation is $73\mathrm{.}3$ m and the outlet invert elevation is $72\mathrm{.}5$ m $.$ The headwater elevation is $75\mathrm{.}91$ m and the tailwater elevation is $71\mathrm{.}3$ m $.$