Civil Cell for Curb Ramp

I want to design a curb ramp (CR-A) in 3D ORD but don't have the 3D Civil Cell. So when I put the 2D Curb Ramp it doesn't let me to clip the corridor. Does anyone know how would I get the 3D civil cell...
ORD DU - Curb Opening Inlets - Length Required

While I know Efficiency is the ratio of Actual Lenght to Required Lenght - is there a way to annotate or label the length required to capture 100% of the flow in ORD DU?
Project Storm Sewer Profile to an Alignment

I am attempting to project my storm sewer to an alignment, however when I project the run to the baseline, the storm sewer profile seems to fall apart. Im not quite sure what is causing this as I have...
projected slope stops updating after adding surface profile

Hi all, I want to design my vertical alignement for the highlighted arc (cyan). When I project the main profile (red alignment) onto this cyan arc this is dynamic, i.e. when I change the horizontal radius...
Point control back up

I have corridor A consists of many point controls. For some reason I need to delete this corridor A. All other corridor objects I can export and take back up but for Point control I don't have any option...