Considering the same rectangular structure of width $b=5m$ and height $15m$ positioned in a

channel of $25m$ width. The discharge Q through the channel is $250m^3{s}^{-1}$ and the height $h$

of water is $5m.$

Assuming the value of $U$ on the side of the structure is the same as the value on the rear

$($downstream side$)$; what is the height of water on the downstream side of the structure?

Remember, while we assume the flow velocity is the same as at the sides of the structure, the

width of the flow will now return to the upstream value $($i$.$e$.,25m)$

Give your answer rounded to $2$ decimal places $($you do not need to input units, only the

numerical answer$).$