Input Information:

Maintenance Hole $1$ Elevation: $196\mathrm{.}05$ m

Maintenance Hole $2$ Elevation: $197\mathrm{.}21m$

Sewer Length: $115\mathrm{.}3m$

Tributary Area: $1\mathrm{.}06$ ha

Runoff Coefficient: $0\mathrm{.}60$

Inlet Time: $15$ minutes

Intensity Duration Frequency $($IDF$)$ Parameters:

$5$ Year Storm: a: $756$; b: $6$; c:$0\mathrm{.}801$

Minimum Sewer Diameter: $300mm$

Sewer Wall Thickness: $0\mathrm{.}1*$D

Full Flow Velocity: $0\mathrm{.}8\frac{m}{s}$ minimum : $6\frac{m}{s}$ maximum

Minimum Sewer Cover: $1\mathrm{.}20m$

Mannings Roughness Coefficient: $0\mathrm{.}013$

Nominal Storm Sewer Sizes: $300,375,450,525,600,675,$ etc.

Design:

Calculate time of flow

$1.)$ to upper end

$2.)$ in section