I have a line featureclass with many segments (for example roads or waterways). I want to merge line feature segments that touch each other until the next crossing. The picture shows an example. After the geoprocessing operation I want to have one long line, two middle lines and one short line.

I know how to do it with the editing toolbar for some features manually, but how do I do it for ALL features of the whole layer?

The current segmentation doesn't make sense in my project.

How do I do it in ArcMap 10.4 ?

enter image description here

1 Answer 1


You should use Dissolve with the Unsplit Lines parameter set to UNSPLIT_LINES and Multipart parameter set to SINGLE_PART.

  • that's exactly what I was looking for! I knew dissolve, but the combination of UNSPLIT_LINES and SINGLE_PART works magic, thanks a lot!! Sep 1, 2016 at 14:16

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