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How big is the Big Fill?  

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Mike Berry
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Posted by: @gene-kooper

Yes, I got the above data from the state of Utah.

Excellent work there Gene. After I added my reply I saw that 12 minutes earlier you'd put all my hypotheticals into practical use. 

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Bill93
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So are you guys going to tell the National Park Service your results?

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Gene Kooper
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@bill93

If your question is directed towards me, the answer is no.  I can forward what I downloaded to anyone interested in taking it beyond my answer of what the slope of the fill is.

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Andy J
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I wonder if there is any publicly available LIDAR data that you could use...  That would be interesting too. 

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Loyal
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Posted by: @andy-j

I wonder if there is any publicly available LIDAR data that you could use...  That would be interesting too. 

See Gene's post(s) above.

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Andy J
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@loyal

haha!   ooops!   I was thinking of this one over lunch and didn't re-read the thread.  Nice work, Gene!!!  

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Gene Kooper
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In case the original poster, Bill or others have an interest in computing the volume of the Big Fill I put the LIDAR 2 x 2 km tile and equivalent NAIP 2018 imagery I downloaded from the Utah GIS web site in a Box.com folder. Both files cover the same area and are in UTM, Zone 12 North, meters, NAD83(2011).  After I contoured the LIDAR data I noticed a slight east-west offset between the NAIP imagery and the LIDAR data.  For the Tiff file I attached to a previous post, I moved the NAIP imagery 6 feet to the west to match the LIDAR data.  I adjusted the NAIP imagery because my experience is that the georeferencing is not a rigorous orthorectification, but rather a quick 'n dirty process. That is easy to verify by comparing NAIP imagery from different years and noticing that objects "jump" around.

Also, for anyone that wants to use the TIFF file that I included earlier that is in an LDP and U.S. Survey Feet here is the .tfw file contents so it can be imported into AutoCAD.

1.50000000000000
0.00000000000000
0.00000000000000
-1.50000000000000
99300.25000000000000
200601.25000000000000

And the link to the original data files.

https://app.box.com/s/as677dm5tonhp3otci96pzvs2neljmb2

PM me if you have any questions or problems.

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