If the ramp your refering to is toten trail ramp I would suggest you drill a few holes. I haven't seen any vehicles on there yet and the ice looked a little sketchy prior to the snow. South and east end there is vehicle traffic for a couple weeks already.
Big pressure ridge running east to west just south of the totten trail ramp that pretty much blocks a guy from running south. During days if fresh snow there was a lot of wet spots along it so I suggest to not get very close.