Ramp connection in between elevated viaduct and at-grade portion

Dear All,
I cant establish an interchange ramp connection between elevated viaduct and at-grade sections. I have attached a screenshot of the area that need to be interchanged. Also attached the working file in the link below for your reference.
Appreciate if anyone could guide me on this matter. Thanks in advance.

Folder Path: 1drv.ms/.../s!Atg_UdzhTl5cnN989yubVVJJdRoGoA

  • That is one of the short comings of ConceptStation; you cannot have intersections on structure. I usually just run the corridors through each other as close as possible to the same elevation. If anyone says something I point out the first word of the software "Concept".

  • Yes, you are correct PEVans. I'm seeing this as a shortcoming of Concepstation as well. Most of the urban areas does not have enough corridor to build at-grade roads and end up building elevated roads for a longer stretch. This definitely requires interchanges at certain junction to make sure a free flow is provided. But when it comes to designing in such area, we unable to provide one due to the inability of the elevated intersection templates in the software and end up back to basic design although purchased high-end software. Disappointed. 

  • There is no specific template to place elevated viaduct throughout my design. So I have used the bridge template by stretching it to maximum and make sure it looks like an elevated section on my alignment. I have already created a " working corridor" as mentioned in the earlier comment by providing a link for the folder path due to the huge file size. Please use the link to download my working file. No harm in the link provided. It's from my onedrive file.