The maximum allowable distance from the $PC$ to the $\frac{?}{PI}$ is limited by an existing bridge and

a rock ledge to $585\mathrm{.}00ft.$ From the $PC$ to the $PCC,$ a curve with $D=7$ is specified; from the

PCC to the PT a flatter curve will be used with $D=3{30}^{\text{'}}.$ The azimuth of the back tangent

$($PC$-$PI$)$ is $20{37}^{\text{'}}$ and the azimuth of the forward tangent $($PI$-$PT$)$ is $70{14}^{\text{'}}.$ For the required

alignment consisting of a compound curve, compute the following:

i$.$ The length of the tangent from PI to PT;

ii$.$ Based on preliminary stationing of

$135+18\mathrm{.}22$ for PI compute the stations of

the PC$,$ PCC and PT$.$