Hi, I am attempting to identify the steepest portions of a line in arcgis pro. I have a line feature with z values and a DEM. I have calculated maximum slope for the entire line using the "Add Surface Information Tool". Now I would like to identify the location of this maximum slope along the line. Is there a tool for this in ARC GIS Pro?
Thanks,
-Andrew
Solved! Go to Solution.
I would need examples from your tables to see what is going on.
Use Add Geometry attributes to get the x, y coordinates of the start end points and their Z values.
Also... You are using projected data (?)
Ok, The data is in a GCS. I ran split line at vertices and then ran the add Geometry tool. Then I added a field "avg_slope" and used the python script you gave me in the field calculator. Still getting very large values. I am attaching a screenshot. The average slope of the entire line is 8% and I am trying to identify segments that are above 15 %. I am attaching a screenshot of the table. Cant thank you enough for your patience and help!
Your slopes will make no sense if your x and y are not in planar units (aka meters) since your elevations are in planar units (meters).
Slope has to be calculated using projected coordinates. Either use a projected file (like a UTM or even an Albers or something local) or use the Add Geometry Attributes to get the coordinates in projected units before calculating slope
That did the trick! You are a hero. Thanks for the kind and patient help.
Glad it worked out!