CE $3342$

Homework $4$

Due: March $25,2024$

$4.$ Design a trapezoidal channel lined with grouted riprap to carry a discharge of $100cfs.$ Assume a bottom slope of $S_0=0\mathrm{.}003$ and a side slope of $L$:$H=1$:$2.$ The minimum permissible velocity is $1\mathrm{.}97f\frac{t}{s}.$ Find the required depth, top width, and bottom width $($in $ft)$ associated with the best hydraulically efficient cross$-$section. Confirm that the design passes the depth and velocity checks.