Surface and Grading Issues: Cannot merge surfaces, and add features

[qureshikhizar]

Hello,

I am facing a number of issues and hope to get a detailed answer: (Photos included in end of this post)

Background of the project: The screenshots show an original surface from survey (green) with the proposed grading (blue/red) I have added. The proposed grading is flattening for a compound and a gravel access road with turn around areas. 

P.S: If you really need the file, please let me know however its not a favorable option because the project is client confidential.

Issues:

1- I have circled the areas that don't look correct. My road ends at the alignment and the feature line is for the compound grading. The point where they meet is not uniform. There are overlapping contours.

How to fix so both work together and there is a nice uniform surface that transitions without the weird looking overlap.

2-I want to add a ditch/swale on the northern side of the compound (attached). How will i add this and also how to make sure the culvert grades all the surfaces not just the proposed contours. Will i have to make a new surface that has the modifications from the proposed grading?

3- This is my work flow for above. Please advise if its correct and improve as required

Phase I: Creating the Road

a- Imported land xml from Survey

b-Later survey added more data so i imported another land xml, this one had the original data and new expanded contours

c-Used paste surface to create a surface that has both surfaces in it

d-Drew the alignment

e-Created surface profile

f-Pasted the road boundaries that will act as widening targets for corridor

g-pasted the compound outlines as poly lines

h-drew the proposed profile in profile view

i-created the corridor from proposed profile

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Phase II: Compound Grading

a-Drew a feature line, added fillets R=1' on the corners, because sometimes grading shoots out in hour glass like way

b-Adjusted the feature line elevation "From Surface" which is the land xml i imported

c-I chose the end elevation of the road as my base and flattened the compound by adjusting the feature line elevation to it. 

d-Created a grading group with the feature line and existing surface

e-Graded with 2-1 slope and added infill

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Phase III: Adding Drainage features

a-Modified/added corridor regions with culverts

b-Add culvert around compound (I have issue here how to add) I'm confused between the interaction of surfaces (i explained above)

At this point i have:

1-Original existing surface

2-Compound grading surface

3-Corridor surface

Thanks!!

@lim.wendy

@ToddRogers-WPM 

@Joe-Bouza 

@MMcCall402 

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Photos

Plan view

Looking down plan view

Object view of the road and compound grading contours

Object Viewer showing proposed surfaces

3d view of compound grading and road meeting it

proposed surfaces road and compound

object view of existing surface yellow and proposed road/compound hidden under it

Overlapping existing surface

side view of above

Proposed grading side view

swale location

sSwale location

[MMcCall402]

It appears like the corridor is grading with a crown at location #2 and the feature line portion of the grading is flat between locations #1 and #3.

Just a guess: Introduce an new elevation point in the feature line at location #2 that matches the crown elevation from the corridor.

[Joe-Bouza]

Turn on your triangles and most of you problem may reveal itself

[qureshikhizar]

Well the main question is still there. how to merge the 2 surfaces? Regardless of what i'm presenting, generically speaking. If you have a corridor surface partially overlapping a grading group surface.

There has to be a way to automatically smooth en, merge and generate the missing contours. Manually trying to match the 2 surfaces meet point i snot productive and feasible.

[MMcCall402]

Another option would be to merge the corridor surface with the existing surface and use it as the target for the grading. This would allow the grading to overlap and match itself to both of those surfaces.

A final proposed surface would be a surface treated by pasting in the corridor surface and then the grading surface.

[qureshikhizar]

This looks like it, i will update later and accept the solution.