2.0

Editing Conceptual Plan Pipe Runs Using the Pipe Run Editor
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3 Click Settings to display the Pipes  Editor Settings dialog box.
The Hydraulic Calculation section has three options: Upstream to downstream,
Downstream to upstream, and None, and an Outflow water surface elevation
option.
4 Select one of the following options:
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Select Upstream to downstream to specify that pipe calculations are made
from upstream to downstream.
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Select Downstream to upstream to specify that pipe calculations are made
from downstream to upstream. You must also enter an appropriate value in
the Outflow water surface elevation text box to use the Downstream to
upstream option for hydraulic and energy gradeline calculations. Enter an
appropriate outflow water surface elevation in the text box, or click Select to
select a point on a current surface to specify the elevation.
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Select None to turn off pipe calculations.
5 In the Design Settings section, do the following:
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Select one of three formula options: Manning, Hazen-Williams, or Darcy-
Weisbach from the Formula list.
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In the Design Point (% Full) text box, type a design point value, or use the
slide box to adjust the value.
6 In the Pipe Length Calculation Settings section, select one of four pipe
structure-to-structure length options from the Length type list: Top, Center,
Bottom, or Maximum.
7 In the Current Surface section, click Select to set the current surface.
If a current surface is set in the drawing, it is displayed in the Surface label.
8 In the Peak Factor Adjustment section, type a value in the Peak Factor text box.
9 Click OK to exit the dialog box.
For more information about the other controls in the Pipes Run Editor, see
Pipes Run Editor Controls in this chapter.