Hydraulic grade line in a profile is below the invert of a conduit or channel

Applies To 
Product(s): SewerGEMS, CivilStorm, StormCAD, SewerCAD
Version(s): CONNECT Edition, V8i
Area:  Output and Results
Original Author: Mark Pachlhofer, Bentley Technical Support Group


The hydraulic grade line in the profile is showing up below a conduit or channel. Why is this happen?


1)  Go to View > Queries and create a new project query by right clicking on Query- project > New > Query > Conduits. You’ll make a query based on the Slope(Calculated) property and the dialog box in the query manager should read as follows “DerivedLinkResults_Slope < 0”. This will select all conduits that have a negative slope.

2)  Go to View > Network Navigator and click on the “ > ” icon. From the menu select the name of the query you just created in step 1.

3)  On the network navigator window select the icon that looks like a pencil and this will highlight all the conduits in your drawing that have a negative slope.

4)  Right click on each conduit individually and select the “Reverse” option.

If this occurs for many pipes, see below article:

Reversing orientation of Pipes and Conduits in Bulk

You should also make sure you have the latest patch set applied to your software. You can download it using these instructions.

  • Created by
  • When: Fri, Jun 12 2015 4:20 PM
  • Last revision by Bentley Colleague
  • When: Fri, Jun 15 2018 9:31 AM
  • Revisions: 6
  • Comments: 0