Proposed contour lines not tying into existing contours.

[sabrina.parkmond]

Hello, I am new to Civil 3d and am designing a ditch with a 15 foot access on either side and a culvert that runs under a road. I have 2 issues; (1) My corridor runs through (on top) my road but I need the ditch to stop right before the culvert but continue around it until it gets to the road. I can split the corridor and have it stop right before the culvert, but how do I make it continue to merge up until the roadway? AD 1.PNGAD2.PNG(2) Where the ditch ends, my proposed contour lines are not tying into my existing. Sorry if I am not clear, I will attach some images.

[sabrina.parkmond]

Also, when I change my assembly to just daylight instead of the 15 access on either side, the end still does not tie in.

[Todd_Rogers]

Turn off your existing and proposed contours by changing their style to No Display. Now, create a new surface. In the Toolspace, expand your surface, then expand Definition. Right-click on Edits and choose Paste Surface. Paste the existing first, then paste the proposed.

[sabrina.parkmond]

Sorry if this is a dumb question, but do you mean after I have put my FG and EG surfaces on no display, turn on the points and create a new surface? Also, I brought in my EG surface, which was divided into 3 by the surveyor, using x-ref. Am I to create another surface from that as well?

[Todd_Rogers]

Existing and proposed must reside in the same drawing. You are basically creating an "empty" surface, and pasting the 2 together.