DESIGN THE CURVET Design a two$-$cell box culvert for the following condition:

Located on M$1$ road

Internal dimensions of the cells are $3\mathrm{.}5m3\mathrm{.}5m$

Soil properties

Density of soil $18k\frac{N}{m^2}$

Angle of repose $30$

Reinforced concrete properties

$f_{cu}=25\frac{N}{m}{m}^2$

$f_y=460\frac{N}{m}{m}^2$