Hello,
I'm new to ORD and was looking for some training on Roadside Ditch Analysis. Bentley's LEARNserver has training videos and a PDF (Placing a Ditch and Culvert Network) which is great but, at the beginning of the training PDF, it specifies that there are two workflows for Roadside Ditches. The first is Terrain with Ditches (or invert at Grade) and the second is Terrain without Ditches (or invert Below Grade). I anticipate our modeling team to include the Ditch Grading when they are creating the Proposed Terrain model, but this training PDF specifically explains that it focuses on the Terrain without Ditches Workflow i.e. if the Ditches aren't modeled. Is anyone familiar enough with this to explain if it's a similar process for Analyzing Ditches that are already present in the Terrain model and/or point me in the direction of a training PDF/Video that explains the other workflow not included in the LEARNserver?
Is it as simple as using cross section nodes and placing them at the inverts of the modeled Ditch rather than relying on the upstream/downstream nodes to create the Ditch/Inverts?
Thanks!
Hi Andrew,
If someone is modeling the ditches for you using ORD civil tools like corridor modeling or linear templates, then you can use the resulting meshes (or terrain model if one was created) as the elevation reference when you place the ditch nodes. So, yes, you can place the cross section nodes as needed to capture the channel's horizontal and vertical alignment. As for channel dimensions, it depends on how uniform your channel is. If channel sections vary, then layout your ditch links using Type = Channel and enter user-defined channel data for the cross-sections. If channels are uniform, then layout the links using Type = Conduit and you can define the channel dimensions as part of your conduit. The link type is defined as part of the Feature Definition. I would not worry about the 3D model produced by ORD for the channel and cross-section links - you already have the 3D model from the ORD civil tools that were used to create the ditch. Also, you can enter ditch length as a user-defined value, so you don't have to worry about following the actual ditch alignment exactly. But if you want to, you can use the same tools to create curved links or add bends to your links that you can use for regular pipe conduit links.
Best wishes,--Karl
Karl Dauber, PEAdvance ConsultingLaurens County, SCkarldauber@advconsult.netwww.advconsult.netwww.linkedin.com/in/karldauber
Answer Verified By: Andrew Garrett
There are a few people out here- on this forum- who really know water. Pay attention to Mr. Dauber, folks.
Mark