The base for both sections is $30.$ Notes giving the distance from the centerline and cut ordinates for

station $8+70$ are: C$6\mathrm{.}4/31\mathrm{.}6,$ C$4\mathrm{.}5/15\mathrm{.}0,$ C$3\mathrm{.}6,$ C$5\mathrm{.}0/15\mathrm{.}0$ and C$5\mathrm{.}7/28\mathrm{.}9.$ The notes for station $9+70$ are:

C$3\mathrm{.}3/30\mathrm{.}4,$ C$3\mathrm{.}1/15\mathrm{.}0,$ C$4\mathrm{.}9,$ C$4\mathrm{.}6/15\mathrm{.}0,$ and C$4\mathrm{.}3/30\mathrm{.}1$