The minimum required cover for a certain storm sewer installation is $5ft.$ The depth of soil above the top of the pipe is $5ft.$ at the upstream manhole. The surface slope is $0\mathrm{.}00254.$ The slope required for $V_{\text{f}\text{u}\text{l}\text{l}}=3f\frac{t}{sec}$ is $0\mathrm{.}00173.$ The $0\mathrm{.}00173$ pipe slope will be ok to use because it will maintain minimum cover.

a$.$ True

b$.$ False