https://communities.bentley.com/products/road___site_design/f/geopak-inroads-mx-openroads-forum/109894/create-surface-corridor-modelorHowdy! I am having issues creating a surface out of my model. The end conditions seem to be hitting the correct spot, but after that the created surface is going straight down like it&#39;s trying to tie to another surface. Can anybody help?en-USTelligent Community 12https://communities.bentley.com/thread/335058?ContentTypeID=1Wed, 19 Aug 2015 14:11:11 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:b64c82a3-e136-4c06-a212-35a03c3ec34eDerek SchmidtEspecially if the elevation of those bottom points is 0, it is probably a mistake of the graphical filter used to create your terrain. You&#39;ll need to filter out those lines in some way, or--since it looks like a boundary element--maybe use Drape Boundary rather than straight Boundary.<div style="clear:both;"></div>https://communities.bentley.com/thread/334868?ContentTypeID=1Tue, 18 Aug 2015 14:43:41 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:e51469d9-7f17-40f4-b230-e2845e75c5eerwatson318It looks like you may have an offsetted(sic) boundary that you have included in your tin as well as the triangles.<div style="clear:both;"></div>https://communities.bentley.com/thread/334861?ContentTypeID=1Tue, 18 Aug 2015 14:13:55 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:2b2d0e64-13a5-4cc8-af46-85f02fbdfe02Brian JohnsonI am using V8i SS3, Geopak SS2.<br /> When I create the surface in modeler the TIN it generates does not match the DTM. It only generates a handful of triangles. The triangles you see in the image attached are generated from dropping the mesh, extracting graphics, and building a tin.<br /> Thanks for looking in to this for me!<div style="clear:both;"></div>https://communities.bentley.com/thread/334854?ContentTypeID=1Tue, 18 Aug 2015 13:40:06 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:ebac3633-c24b-4988-88a7-41bcc747f00aNico Romancould you tell us what product you are using? what version?<div style="clear:both;"></div>