[GRASSLIST:7280] Hazard Assessment

Dave Kent dkent at sasktel.net
Wed Jun 22 23:34:45 EDT 2005

I am looking at a project which involves a hazard assessment of several 
hundred kilometres of pipeline route.  I need to find where the 
pipeline crosses valleys and classify the steepness of the approach 
slopes to the stream.

I have vector coverage of the stream courses and raster DEM topographic 

How can I extract the locations where the pipeline intersects the 

What options are available to classify the steepness of the slope on 
the pipeline route and perhaps display with a vector line with a width 
proportional to slope or colour proportional to the slope.

Thanks in advance for any help.


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