AutoCAD Civil 3D :: Merging Corridor Surfaces That Run Parallel To Each Other

Dec 11, 2012

How do I merge 2 corridor surfaces that are running parallel to each other. Due to this being an overlay project the CL will stay the same just raised 4.5" from existing CL and the existing cross slope varies which we are matching until you hit the sawcut. We are not ripping out or milling any apshalt, it is strictly an overlay of the exisitng with 4.5" of new asphalt. We are saw cutting 2' either side of theedge of paveement and matching in with proposed.  

 I have created a feature line over the existing cl then raised it the required height. the cl has been offset 10 both sides to create my left and right shoulder alignments,  I then created a left and right shoulder corridor assembly which has supplied 2 seperate surfaces. I now would like to merge the 2 surfaces using the raised cl feature line as a break line to create the final proposed surface. I would prefer not to have to create feature lines from my corridor and create a new surface because i would like to take asphalt and subgrade quantaties at the end with out having to hand calc but will if need be.

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AutoCAD Civil 3D :: Merging Surfaces Connecting Grading

Apr 25, 2013

As you can see in my attachment, I have a emergency spillway coming out of a dugout wetland.  The fill area, the pool area, and the emergency spillway channel are all separate surfaces.  All three of these surfaces are created from gradings.  The fill was a feature line drawn around the top witdth of the dam, and then graded down to the Existing Ground.  The channel is another polygon feature line with elevations at each PI and then graded up to the EG.  The pool was a feature line I drew around the perimeter of my pool, laid on the surface EG, and then graded down to an elevation on a slope. 

I'd really like to blend all the surfaces together.  Right now, they are all separated with tiny slivers of Existing Ground.

How do I go about this?  As you can see, I'm still pretty green with gradings. 

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AutoCAD Civil 3D :: Corridor - Complex Merging

May 23, 2012

I am using corridors to model a driving course. I have attached two images that show 2 scenarios. One is where an alignment loops back onto itself. The other is similar to a merging lane.

What are the best ways to handle these? I am having a hard time with the surfaces overlapping. I have tried using targets, but they don't work well.

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AutoCAD Civil 3D :: Corridor Surfaces And Superelevation

Feb 26, 2013

I have an alignement to which I have applied superelevation.

The superevation has been applied and the alignment has been annotation and it shows the change from camber to superelevation on  the curves.

However when I create a surface of my corridor it does not show the superelevation, the surface is showing a cambered alignment throughout.

I have created a new alignment, a new corridor and surface and still the same.

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AutoCAD Civil 3D :: Merging Duplicated Files But With Unique Grading And Surfaces

Jun 8, 2012

I started with a points file which I created an existing surface called EG. I then used a number of feature line to create the gradings, grading surfaces and associated volume surfaces (compared to EG) also had other drawing elements and aerial photo in place. I had a lot of grading scenarios to do and it was all in one file. It was getting out of hand, so I duplicated the file, deleted the gradings (retained the EG surface) then added another set of new gradings and volume surfaces against EG. I did this in 4 files. So now I have multiple files that contain duplicates of the same EG surface and other features, but have unique gradings and surfaces referenced to those individual EGs.

Files all have similar structure:

+Various features (duplicated in all files)

  - base aerial photo

  - other drawing elements


  - EG surface (duplicated in all files)

  - Grading A-1 surface

  - Grading A-2 surface

  - Grading A-1 volume surface

  - Grading A-2 volume surface

+Site A

  - Grading A-1

  - Grading A-2

I recognise now that I should have data shared the EG surface from 1 file (and xrefed the other common drawing elements??) but given my situation now, what is the recommend way of putting it all together? 
Civil3D 2013 (infrastructure suite) ANZ & UKIE
Self-built i7-3930K, 16Gb RAM, P9X79 m/board
SSD(system), HDD(data), GTX680, Win7Pro64

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AutoCAD Civil 3D :: Overhang Correction - Corridor Surfaces?

Jun 5, 2012

how and when I should be using "Overhang Correction" setting in my Corridor Surfaces?

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AutoCAD Civil 3D :: Corridor Datum To Follow Protruding Surfaces

Dec 4, 2013

Am trying to create a corridor datum surface that goes around Protruding lanes but it seems I am Short on knowledge here. the outer lane, LaneOutSideSuper has a greater thickness than the inner lane (same sub assembly) and I would like my datum surface (actually, not only the datum surface but other layer surfaces) to attach its self around the bottom links of both surfaces but it shoots from the Crown_sub to the outer lane Datum.

I have used the bottom links overhang and adding feature lines to the surfaces but it doesn't seem to cut it. Attached is an illustration of the section view. The top figure is what I hope to get and below is what i seem to get.

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AutoCAD Inventor :: Bolted Connection Between Non-parallel Surfaces?

Jun 1, 2012

Having trouble bolting through a beam onto a tappered face of a channel. In RL a tapered washer would be used,  though they exist in Content Centre it doesnt work with the application.

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AutoCAD Civil 3D :: Surface Corridor Is Not Triangulating Entire Corridor Boundary

Sep 14, 2012

I have created a surface from a corridor.  I set the boundary of the surface to the daylight of the corridor.  In some areas of the corridor the surface does not triangulate see attached.

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AutoCAD Civil 3D :: Copy Corridor Or Corridor Station Values Only?

Dec 13, 2012

Copy a corridor successfully? I'd like to try this just a little worried about the explosion of evil this may cause to my Civil 3D session.

Even all the properties of the corridor setup from one to another would be useful. I'm building one corridor and an 2nd one that matches everything except I need to replace my Assembly with one meant for stripping.

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AutoCAD Civil 3D :: Corridor Surface Is Not Matching Corridor Top Links

Mar 21, 2013

My corridor surface is not matching my corridor top links.  see attachments.  this is affecting my volumes!

The section-plan(surface red).png is showing the section editor and the plan view.  the red highlighted line in section is the corridor surface and as you can see in plan view the surface is incorrect and wiggly.

The pdf is all my sections with the red linework being the corridor surface.

C3D ver 2012
Win 7, 64bit

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AutoCAD Civil 3D :: Two Alignments That Are Not Parallel

Oct 31, 2013

I have two alignments that are not parallel that make up one corridor.  Each alignment has a separate profile running along it.  At stations where I have a template drop in my section editor, it is not representing what is really happening because it just is perpendicular to one alignment.  Is there a way to develop a secondary alignment that will have my section editor show what will be parallel to both alignments.

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AutoCAD Civil 3D :: Parallel Automatic Labels

Mar 28, 2008

As you see in the picture I have a subdivision that follows a curving road, and therefore all the lot lines also follow the road. This is unfortunate, as I have been creating label styles 1 by 1 for left, center, right, for every angle of line. Is there a way to get your label to go parallel with the line automatically?

What I am thinking of is with structures, there is that circular grip that rotates the structure, is there something similar to this with labels? or must i keep grinding away making the labels one by one in their separate degree intervals.

Right now I have 33 label styles.... and I am not even 1/4 of the way done.

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AutoCAD Civil 3D :: Partial Parallel Pipes In Profile

Sep 6, 2013

I have a water and sewer line that run parallel for the most part. The sewer starts at 10+00 runs west and then turns north about 10+80 and parallels the waterline from that point on.

I want to show the sewer in the water profile as beyond and to reference the sheets to see for P&P information. This works fine.

When i go to show the waterline in the sewer profile it does not show up correctly it only shows up in the initial 80 feet of the sewer profile. Is this because the two alignments are not parallel with each other until that 2nd manhole?

See attached profile PDF.

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AutoCAD Civil 3D :: Best Fit Alignment From Parallel Linear Sets

Sep 21, 2012

I am trying to create a best fit alignment from parallel linear sets of COGO points. When I run the command, about halfway through the data set the alignment suddenly curves out of away from the COGO points. I tried doing a best fit individually on each side, one side works fine, the other sets station zero about a quarter of the way into the points and runs it back toward the start, leaving out 3/4 of the points.

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AutoCAD Civil 3D :: How To Model Two Parallel Roads With A Median In Between

Aug 23, 2012

i have a question for the gurus. how do i accomplish modeling two parallel roads with a median in between? in other words, say a northbound (NB) and a parallel southbound (SB) roadway, with a grass median in between them. the both roads have crown, and then eventually slope down towards the median, and at one point they meet.

I am curious to know if say for NB and SB, i have an assembly with the lanes, then shoulder, and then median area past the shoulder at x%, what subassembly should i use to accurately model the point where the NB and SB x%s meet?


I am not sure if i would be able to do it with only one baseline, as the roads may not always be parallel.

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AutoCAD Civil 3D :: Does Adjacent Elevations By Reference Work Only With Parallel Features

Aug 29, 2013

I have two feature lines. They are not parallel.

The tool "Adjacent elevations by reference" seems to work fine only when feature lines are well parallel one to another ? 

Also, it seems that C3D method works fine if  "parent" object  and "object to edit " have similar number of vertex, similiar "lenght",.... 

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AutoCAD Civil 3D :: Parallel Pipes And Crossing In Profile View Disappeared

Oct 8, 2013

My colleague added parallel pipe networks and crossings to multiple SD profile views yesterday.  Today, he came in, turned on AutoCAD, opened the drawing, and the parallel pipes and crossings were gone.  The working folder had reset itself to nowhere so we reset the working folder and Data Shortcuts Folder, but that didn't bring them back.  We can go into the profile view properties<pipe networks tab and turn the pipes and structures back on and override the styles, but that is basically redoing everything we did yesterday.  Is there a way to avoid having to redo everything?  Is there a way to avoid this from happening in the first place?

C3D 2013
Windows7 64 bit

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AutoCAD Civil 3D :: Volume From Surfaces

Sep 6, 2012

i'm jumping into 3d late in life...playing with volumes. i've created surfaces from aerial surveys and have saved the surfaces as separate files. i would now like to run volumes of the two as they represent the same quarry site from different years. it appears (?) i need to have both surfaces listed in prospector to run volumes. each separate file has its own surface listed. do i get (import?) the second surface drawing into one of the files so i have both listed and can run volumes? i see where i can create a surface from importing a .tin file...but i don't see how to export the surface as a .tin file.

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AutoCAD Civil 3D :: Surfaces Are Not Updating

Feb 5, 2013

I am having a problem with my data shortcuts for my surfaces not updating. I have 2 surfaces (one ex and one prop) both are on auto-rebuild.  Both of them are in separate files and data short cutted into my profiles files (I have one for water, one sewer and a third for storm drains). Any time I make a change whether I add or subtract data the file the data does not update in the profiles. As a work around I have been creating a new data short cut and adding it to my profiles files. What am I doing wrong that would make them not update?

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AutoCAD Civil 3D :: How To Connect The Surfaces

Nov 2, 2013

When you paste a surface into another how does it connect the surfaces?  Does it create a vertical wall where at the edge of the paste surface?  Can you tell it to grade a certain slope to the surface you are pasting into?

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AutoCAD Civil 3D :: Merging Grading Groups

Oct 3, 2013

I'm currently trying to model all siteworks for a project using Civil 3D 2014. I created several grading groups that represent the various pads I need for the general project layout.  Since this was the way I knew how to model the pads, now I have some intersections on the slopes between one grading group and the other. I was wondering if I could "merge" the grading groups in order for them to be just one big pad, that maintains all the levels from the other pads. Here is an image of what I am trying to explain:

What I want to do is to merge the regions circled in red, so that I have only one building pad on my terrain.

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AutoCAD Civil 3D :: Merging Pipe Libraries

Dec 11, 2013

I'm in the deployment testing phase of rolling out Civil 3D 2013.  We're currently using Civil 3D 2011.  We've done a moderate amount of customizing to 2011 to make it work for us - mainly in styles, but we did add a special pipe library because we still run into jobs that use clay pipe and other "non-standard"/"non-modern" items.

The problem is that we don't want to have redo the work to use our custom pipe libraries.  At the same time, we want to use anything that Civil 3D 2013 starts us with in the "Imperial" configuration because we've not completed our customizations and there are new things that our default starting drawing doesn't know about (pressure pipes and railways come to mind). 

So I'm wondering what the best method of merging the two libraries is.  Can I simply look for files that are only in our 2011 pipe library folders and copy those forward?

It may stop us from creating pipes and parts in the future, because I for one do not relish the idea of recrating things everytime an upgrade happens.

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AutoCAD Civil 3D :: Creating Two Surfaces Do Not Interact

Jun 14, 2013

I'm trying to create a surface under my 'existing ground' surface. There is shallow rock where one of our projects is located and using geotechnical data I want to create a 'rock surface' at the known rock elevations. I just want this surface for visual reasons and do not want it to interact with the existing ground or pipe network.

I have 4 places along the roadway where I know the rock elevations. I created new points around each known point with the same elevation so there would be more than just four points on the surface and so I could make it the width of the road allowance. But when I look back to my profile of the road, it shows the existing profile drop to the rock surface at each place that I created points for the rock elevation. Not sure how to make it so the existing ground surface doesn't pick up the new points I added for the rock elevations.

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AutoCAD Civil 3D :: Comparing Surfaces As A Visual

Oct 9, 2012

We will be doing some grading in a park with trees.  Probably maximum depth or fill of 12 inches.  The question has come up to be able to show cut and fill quantities as a visual shade of colors.  I have a way to display cut and fill ticks and it will give me the value, but that's not what they want.  I change the cut ticks to red and the fill ticks to green.  What is the best way to represent this like when you turn on slope percentages and assign different colors.  but I want like 0-2" fill to be red, 2" - 4" to be green, etc.

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AutoCAD Civil 3D :: Correcting Surfaces / Contours

Nov 6, 2012

Im working in Civil 09. I need to adjust the surface I created in order for the contours to be correct. Right now I'm interpolating point elevations to adjust the contours. I find myself adding lines and adding and deleting points. It's tedious. I tried changing the grid spacing to smaller one. It didn't seem to work.

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AutoCAD Civil 3D :: Can Get CV Coordinates For Nurbs Surfaces

Nov 6, 2013

I want to ask, Can I get CV Coordinates for Nurbs Surfaces ? How can I get ?

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AutoCAD Civil 3D :: Multiple Surfaces On One Section?

May 16, 2012

How do I create sections that show multiple surfaces?

All surfaces are existing, none are design. (existing ground, grubbed surface, bedrock surface)

How I miss LDD.

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AutoCAD Civil 3D :: LiDAR Generated Surfaces

Jan 14, 2011

I have recently upgraded to Civil 3D 2011 when we started receiving LiDAR data.  I have been playing around with the data a bit and have a few questions on how the data is dealt with.  It appears that when a point cloud is added to a surface, it is using the point cloud display somehow to generate the TIN.  I believe that the point cloud display is showing a percentage of points based on the maximum number of 1.5 million points.  On these particular datasets (citywide LiDAR coverage, about 2,600' x 2,600' panels), we may have 4-7 million points in each LAS file.  Is Civil 3D ignoring all points beyond 1.5 million in surface building operations?  Also, when adjusting the slider, is there any way to know which points will be displayed...or maybe the points are reduced randomly??

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AutoCAD Civil 3D :: Volumes / Grading And Surfaces

May 30, 2012

I have an existing topo surface created as well as grading for a proposed elevated pad of earth done in civil 3d 2013. I simply want to calculate the cut and fill quantities. I created the grading with automatic surface creation checked on. When I use volume tools to see what the quantities are, it says 0.0 for both cut and fill.

I created another surface (TIN) and pasted the existing topo surface and the proposed grading surface into it and I couldn't get any quantities.

I created another surface (TIN volume) and set the base surface as the existing surface and the comparison surface as the surface created from the grading but again could get no quantities.

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AutoCAD Civil 3D :: Connecting Separate Surfaces

Mar 3, 2013

I created a grading and a surface for a pond that is abotu 30' away from a roaway that has a seperate surface.  What would be the best way to connect the two surfaces?  I need a uniform slope from the edge of pavement to the top of berm of the pond.

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