$(15$ points$)$ Using the data for the town of Pigeonroost $($Question $1,$ above$)$;

$($a$)$ select a Parshall flume from the options available in Table $20-2$ below and identify the

selection by the throat width.

$($b$)$ Determine the depth of the flume if $0\mathrm{.}6$ m of freeboard is to be provided. Use Figure $20-$

$3$ and Equation $20-1$ in the textbook.

Table $20-2$

Adapted from Parshall in nominal SI equivalent to U$.$S$.$ customary units. For actual design see Parshall, $1926$a and $1926$b$.$

Parshall Flume Coefficients