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I created this contour shapefile and I need to break it into smaller parts so its better to manage. I also have a line shapefile of where I want the breaks. Is there a way to intersect and break them? I have tried everything I have available, maybe its something very simple that I'm missing. Thanks in advance!

I'm using ArcMap 10.1

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yes, but the shapefile is coming out empty. – Naomy P. May 21 '13 at 19:13
Did you try the Clip tool? (I meant clip earlier, instead of intersect - see above) – gm70560 May 21 '13 at 19:21
Yes, it isn't working either. – Naomy P. May 21 '13 at 19:40

Try using Split (Analysis) to subset your data.

enter image description here

To illustrate, I added a new text field to the split features (i.e. 1-16 based on OID) and used that as the basis for the split. There are 16 resulting shapefiles on the image to the right.

Also, try the Split Layer by Attributes script tool if you have licensing issues. I believe you may need to intersect or union prior to the Split Layer by Attributes.

enter image description here

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Best solution unless asker only has Basic license. Although just realised he/she seems to be wanting to use line features to clip with so will need to polygonize them. – PolyGeo May 21 '13 at 19:56
I found this, but don't have the license for it. – Naomy P. May 21 '13 at 20:05
@Naomy post edited to address your comments. – Aaron May 21 '13 at 20:25
Thanks! I'll try it out and let you know. – Naomy P. May 21 '13 at 20:42
After figuring out wich attribute I needed to split them, it worked. Thanks! – Naomy P. May 23 '13 at 13:23

Have you tried "Union" in Analysis tools?

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I tried, but its only for polygons. – Naomy P. May 21 '13 at 20:05

If a license higher than "Basic" is available a great option is the Planarize Lines tool on the Topology toolbar:

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