AutoCAD Civil 3D General

Valued Mentor
Posts: 997
Registered: ‎01-07-2011
Message 11 of 13 (113 Views)

Re: Anyone using pipes to draw in existing utilities.............

02-13-2013 08:21 AM in reply to: taneum

Gotchya.  Yes, I like utilities as networks due to the Interference capabilities and Profile projection capabilities.


How many road crossings? I think it would be worth it to quickly edit those in through the Pipe Network editor for the productivity reasons above.

Ernst Engineering
Fred Ernst, PE
C3D 2014 SP1
W7x64; i7 8gb; Radeon HD 5700
Distinguished Contributor
Posts: 129
Registered: ‎01-07-2005
Message 12 of 13 (110 Views)

Re: Anyone using pipes to draw in existing utilities.............

02-13-2013 08:34 AM in reply to: fcernst

Okay so here is what I think will work best for me here.........


I drew in a polyline along my utility.  In this case it some communications lines.  I used the grading function to get elevations from my existing surface model.  I then lowered that line 3' below the surface.  Next thing I did was use the "delete pi" commanding in grading to get rid of probably 2/3 of the pi's.  This left me with about 5-6 segments.  I then created a pipe network from that line and it gave me 5-6 pipes.  I drew those into the profile view and then just turned off all the pipes except the one that actually crosses my centerline.  Seems to be pretty close.


I thought about just doeing 5' either side of the centerline and calling it good but our new sewer is 15' off centerline and I want to see any potential conflicts down the way with utilities so I wanted to draw in the utilities that far out.

Distinguished Contributor
Posts: 423
Registered: ‎11-17-2005
Message 13 of 13 (99 Views)

Re: Anyone using pipes to draw in existing utilities.............

02-13-2013 01:44 PM in reply to: taneum

the only time we need to show existing utilities is in the cross sections. so i do the polyline thing but i draw from the cross section sample line/utility line intersection. that gives pipe lengths of 50' (assuming your sample lines are 50'). i convert that polyline to a feature line with elevations only at the verticies. drop it the required depth and then convert to a pipe.  it creates null structures at each intersection which i erase. i have pipe styles set up for each utility. it works pretty well and doesn't use too many resources.

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C3D 2012 SP3.0

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