AutoCAD Civil 3D :: Calculating Capacity Of Rectangular Pipe (not A Culvert)

May 7, 2013

In Land Desktop using the Hydrology tools, we could get capacities for rectangular pipes based on slope, size, etc.  

I have tried using the Hydraflow Express tools for this, but cannot figure out how to use them for a RECTANGULAR pipe (i.e. 10x4) box.  Saw the circular option, but couldn't change where it says circular.

This is not a culvert analysis because we have inlets, multiple slopes, etc.  It is part of an entire system.  

I use these tools to layout the system before I want to put it into the analyses software we are using.

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AutoCAD Civil 3D :: Spanning Pipe Labels Calculating Incorrect Slope

Oct 30, 2013

I notice issues using spanning pipe labels for the first time recently after having used them for years.  The slope calculated by the spanning pipe label is completely wrong.  I've attached a picture in which Labeled two pipes connected by a null structure.  The two labels on the bottom are the pipes labeled individually at 3.53% and 3.34%.  When labeling them as a spanning pipe, if I choose the downstream pipe first and them the upstream pipe it shows me a slope of 0.48%.  If I choose the upstream pipe first, then it gives me 2.88%.  Either way it's wrong.

As I was writing this I decided to check and see if the pipes were flowing the same direction (Start to End or End to Start).  Turns out they weren't.  After flipping one of the pipes around so that they both are laid out in the same direction (Start to End from Upstream to Downstream) the label now reads 3.37%, which is correct.

Seems like an the label should honor the flow direction of the pipe, no matter if they have been laid out in opposite directions or not.

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AutoCAD Civil 3D :: Rectangular Pipe Part Builder

Jun 19, 2012

Is it possible to move the autolayout data of this existing rectangular pipe (see attached). I want my pipe to attach at the top or bottom rather than the middle. I tried creating one from scratch but don't really know what im doing yet and can't seem to get it to validate.I've seen a bunch on creating structures, but not much on pipes.

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AutoCAD Civil 3D :: Water Culvert Crossing Under Corridor

Mar 27, 2012

We are starting a new job, and looking how to setup our drawings.  We have a long corridor that we are upgrading, and along this corridor, we have various water course passing through.  We are replacing the existing culverts.  They are large circular culverts.  How do we show the culverts on our model?  Do I create a short pipe network for each culvert crossing?  And also, how do I daylight to the outside of the culvert as the corridor crosses over it? 

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AutoCAD Civil 3D :: Culvert Drawing - UCS Icon In Upper Viewport Distorted

Jan 15, 2013

I am currently working on a culvert drawing, using two view ports for my plan and profile sheet. As you can see below in my attachment, the UCS icon in the upper viewport is distorted, I do not how this occurred nor do I know how to correct it.

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AutoCAD Civil 3D :: Culvert Modeling - Peak Flows Are Artificially High

Aug 14, 2013

I am having difficulties modeling culverts within my model for the 100 year flow.  I have seen the sample file within SAS, and all of my culverts have a storage node at the upstream end with a weir representing the road.  However, when the weir is utilized, peak flows are artificially high.  For example, despite a basin only producing 11.7 cfs, the weir has 8.94 cfs and the pipe has 10.35 cfs. I am using hydrodynamic routing with a 5 second routing time step.

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AutoCAD Civil 3D :: Pipe Network Storm Sewer Pipe Plan View

Nov 20, 2013

Pipe network storm pipes: Fairly new to Civil3D and trying to set up parts list for the storm sewer pipe and would like the plan view to appear as it does currently.  We use a polyline for centerline of pipe, similar to dashed linetype but line and space are the same, width set to pipe width.

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AutoCAD Civil 3D :: Edit Pipe Network - How To Trim Pipe That Pass Through Manhole

Sep 25, 2012

I created pipe network for my storm drain project. I have located all the structures (manhole) to all angle point of my alignment as required. Also I "insert" manhole every 400' per local code requirements using the command "network layout tools; structures only. My problem is I couldn't find the tools how to trim the pipe that pass through the manhole. Please see attached pdf file.

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AutoCAD Civil 3D :: Depicting Both Slice And Cross Cut Pipe Profiles Of One Pipe

Jan 8, 2014

One of the things I seem to struggle with is being able to depict a single pipe when it needs to be shown in one profile as a crossing pipe, and another profile where you you show a lenghwise slice through the pipe.  I end up tracing the pipe with eliptical objects where I'm cutting across the pipe and setting up more for the lengthwise/sideview of the pipe.  Is there a way to have two different styles for the same pipe, one for a cross cut and one for a lengthwise slice?

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AutoCAD Civil 3D :: How To Include Pipe Min / Max Cover As Part Of Str / Pipe Label

Nov 26, 2013

is there a way to include the pipe min/max cover as part of the str/pipe label?

Civil 3D 2013 SP1, Win 7-64 bit

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AutoCAD Civil 3D :: Calculating Cut And Fill?

Nov 20, 2013

My background is actually in Microstation (mainly 2D). I was asked if I could calculate the cut and fill between two topo surfaces. Unfortunately, I don't have the files yet but I will eventually receive them. When I do, what would be the correct method to achieve this task?

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AutoCAD Civil 3D :: Connecting Pipe To Different Pipe Network Structure

Jun 20, 2012

Using Network Layout Tools, can you attach a pipe to a structure in a different Pipe Network? 2013 Civil 3D

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AutoCAD Civil 3D :: Calculating Volumes Between 2 Elevations

Nov 20, 2013

We have a good size channel and the section for the channel varies quite a bit.  We want to find the volume excavated in the channel between 2 elevations (it is the area of sand per the goetech report)?  A template was not used to create the channel surface, breaklines and gradings were used.

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AutoCAD Civil 3D :: Calculating Slope Area

Sep 12, 2005

How I can calculate my area for different slope regions?

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AutoCAD Civil 3D :: Calculating Average Parcel Area

May 16, 2013

Any quick way of calculating average Parcel Area?  I used to export to LandXML and do an area report in CSV.  That doesn't seem to be working for me when I export out of C3D 2012.

The workaround I found was to select all the parcels in Prospector, copy to clip board, paste in excel, find and replace "_Sq. Ft._" with 0, then do the average. 

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AutoCAD Civil 3D :: Calculating Volume From Corridor Models?

Sep 19, 2013

I've been learning civil3d for some time now and I really want to understand how the program calculates volumes from road corridors.

When the top code is used to create surface from a road corridor, the created surface coincides with the top of the road pavement (binder/wearing course), which is not part of earthworks.

How can I create a surface at the formation level so as to compute actual earthworks?

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AutoCAD Civil 3D :: Calculating Existing Berm Volumes?

Aug 12, 2013

I am looking to calculate the volume of an existing berm from a TIN surface.  I have read through some of the Civil 3D tutorials, and realize that I will need to have two surfaces (base and comparison), but need to figure out how to create the comparison surface. 

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AutoCAD Civil 3D :: Calculating Volumes With Out Of Date Surfaces

May 9, 2013

I have been provided a file with a surface, however I have not been provided with the point files referenced to define the surface.  As a result, when I try to calculate the quantities in the volume dashboard using a volume surface, I get the error that the surface is out of date.  Is there a way to calculate volumes with an out of date surface?

I am trying to calculate the amount of material required to be cut when creating a flat bottom ditch.

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AutoCAD Civil 3D :: Calculating Volume Using 2 Existing Surfaces?

Jun 9, 2013

I have create my surfaces and now need a volume between to two surfaces.  I created the surface by using the Surface/Create TIN Surface tool for both my OG and the surface after material has been imported.  I have gone to the volume dashboard and it will not let me add existing surface. How do I calculate the volume?

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Photoshop Elements :: Best Way To Increase Storage Capacity

Nov 5, 2013

I have over 40,000 photos in the organizer . What is the best way to increase storage capacity. I have an iMac version 10.9 OS X. I have used up most of my GB!

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AutoCAD Civil 3D :: Mview Rectangular To Polygon

Mar 8, 2013

Is there anyway to change a rectangular Mview to a polygon one. I have all the text and call outs and now the engineer wants to blank out everything behind the match lines. I will probably never make a rectangle mview again.

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AutoCAD Civil 3D :: Structure Label Expression - Circular Versus Rectangular

Dec 13, 2013

I'm trying to create a custom expression in a structure table that will list the "size" of the structure, wheter it be a circular or rectangular structure.  My column simply states size and I want it to label 5' for a circular or 4'x4' for a rectangular (or whatever the specific sizes are).  The thought was to create an IF function, but Structure Shape was not available to use in expressions (among other problems).  Short of using the description field (tedious) as a workaround?

In this example - CB-104 is a rectangular structure and CB-106 is a circular.  I'd like the CB-104 size to read 4'x4'.

Civil 3D 2014 SP1

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AutoCAD Civil 3D :: Read DEM File With Rectangular Spacing Doesn't Work

Jun 27, 2013

Seems every application but Autocad Civil 3D can read in a DEM with rectangular spacing.

how to approach this? I have a lot of files, I really don't want to have to resample them all at a square spacing so Civil 3D feels good.

See attached files.

Even Spacing

18m x 18m grid spacing

Rectangular Spacing

18.2 x 17.2m grid spacing

Civil 3D 2014 (SP1)
Win 7 Pro x64
DELL Precision Workstation T3500
Intel Xeon 3.3GHz (w3680)
24Gb Ram
NVIDIA Quadro 2000 (1GB)

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AutoCAD Civil 3D :: Rectangular Junction Structure With Off Center Alignment Shown In Profile View

Jan 29, 2013

Is it possible for a civil 3d structure to be displayed correctly in profile view when the alignment does not pass through the insertion point of the structure.  See the attached screen capture.

The rectangular structure is a storage tank and there will be a pipe coming in on one end and the exit pipe will be on the adjacent side at the far end, just as the alignment shows - but the structure doesn't show correctly, or now how I expected.

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AutoCAD Civil 3D :: Pipe Rules Not Followed Exactly?

Nov 1, 2013

I created a pipe rule and applied it to my 6" HDPE pipe in my parts list.  The rule is followed close but not exact.  Here it is:

I created a "cover only" rule for my 6" HDPE pipe.  I have the maximum and minimum cover set to 3.50'.  I have it the same so it will draw my pipe 3.50' deep.  I don't want it to vary.  It for drawing in existing underground power so when we cut profiles and sections the existing power shows up.  We want it to show up 3.50' deep.  I created a label style for my pipe that tells me start cover and end cover of the pipe so I can see it right there on the screen.  The numbers range from 3.50' deep to 4.70' deep.  

Why does the pipe not get drawn in exactly 3.50' deep?

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AutoCAD Civil 3D :: Pressure Pipe Fittings

Apr 20, 2013

When I create a new pressure network in 2014 - I have only Tees & Elbows available - Where are crosses?  I need a 4-way cross at an intersection, C3D seems to include just the other two types I listed.  

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AutoCAD Civil 3D :: Structure Insertion To Pipe

Jul 31, 2012

I have this block called gate valve. The base point is at the middle of the block. When I use this block as a style and insert it in profile it always places itself down low on the pipe. As you can see the grip is way above the top of the block and I have to move it into place anytime I use one. If I change the pipe inverts the gate valve block style lowers itself once again and I have to move it up into place. I have changed the base of the block but it makes no difference.

This is how the structure look in the object viewer. Notice the one on the right is the block that needs to be raised, however in the viewer it shows placed correctly.

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AutoCAD Civil 3D :: Labeling A Pipe Between Structures

Sep 26, 2013

Any way to label a pipe part way between structures? I would like to be able to label a sanitary line where a service ties in with the main line invert.

C3D 2013

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AutoCAD Civil 3D :: How To Add Gravity Pipe Size

Feb 1, 2013

My boss has designed a gravity project that has 21" PVC.  Civil 3D 2010 only has 20" PVC, not 21".  He basically said 21" PVC exists (JM Eagle) so make it happen.  So how exactly can I add a new size to the Parts Catalog under PVC?

Windows 7 Prof w/ SP1, 64bit, Xeon 3Ghz, 16GB
Civil 3D 2013

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AutoCAD Civil 3D :: Changing Pipe Material

Dec 11, 2012

Version Civil 3D 2013....

A pipe network has been created & labeled.  All pipes labeled correctly except one.  The material for 15", 18", 24" RCP pipes labeled "RCP" but all the 12" pipes labeled "Reinforced Concrete Pipe".  So I know I need to change the Material of the 12" pipe to read "RCP".  I was hoping to just go to Pipe Properties & change it there for this dwg but it doesn't change. 

I was thinking it might be in the part xml file but why would some label "RCP" and the 12" didn't? The Parts Catolog used in this dwg is the default from Autodesk.  Also, in the Part List, Material is greyed out.  That's the first place I went to change the Material.

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AutoCAD Civil 3D :: Pressure Pipe Content

May 31, 2013

I'm in the process of creating content for "pressure Pipe networks". I have created a number of pipes (HDPE, PVC and steel, sizes ranging from 20mm to 200mm). I have also created a number of Tees (Equal and reducing).

My question is.

If you draw in pressure pipe say 90mm ø and the insert a fitting say a 90x75x90 reducing Tee into the line. Then you wish to extend the pipe from the 75mm ø branch, it does not pick up it should be a 75mm pipe but defaults back to the setting (90mm) that you drew the original pipe line in, you have to change the default pipe type to 75 before extending the 75mm pipe from the Tee.

Below I have included a couple of screen shots.

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