I'm new working with Civil3d 2014 and I am trying to create a new surface combining an surface created from a site survey (OG) and a corridor surface (Road) I created. Now in the prospector tab I have both the OG Surface and the Road Surface. When I go to OG Surface and go to its Definitions / Edit, and try and 'Paste Surface'. The 'Select Surface to Paste' window pops up but it does not show the Road Surface created from the corridor.
I tried going the other way and selected the Road surface - Definitions / Edit, and tried to 'Paste Surface'. When the 'Select Surface to Paste' window pops up it shows the OG Surface and I select it, it adds it to the Road Surface but it doesn't change to reflect the corridor surface added to the OG Surface. I effectively now have an OG Surface and Road Surface that look identical to each other with no corridor surface information anymore.
I suspect I did something wrong creating the corridor to begin with but I don't know what.
Any help would greatly be appreciated.
James