Yes, I got the above data from the state of Utah. The LIDAR data appears to have been approved in May 2019. Elevations are NAVD88 using GEOID12b. Here is the link for those interested and associated reports for the Box Elder LIDAR data.
Also, here is the LIDAR "report."
And, the LIDAR "metadata."
In some parts of NE Texas, there is sand that has to be put down with a lot of water and at 1:3 slope minimum.
The roads have to have lime mixed in to have any hope of stabilizing the ground to carry the traffic.
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.?ÿ
So are you guys going to tell the National Park Service your results?
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.
I wonder if there is any publicly available LIDAR data that you could use...?ÿ That would be interesting too.?ÿ
I wonder if there is any publicly available LIDAR data that you could use...?ÿ That would be interesting too.?ÿ
See Gene's post(s) above.
haha! ooops! I was thinking of this one over lunch and didn't re-read the thread. Nice work, Gene!!!
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).?ÿ After I contoured the LIDAR data I noticed a slight east-west offset between the NAIP imagery and the LIDAR data.?ÿ 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.?ÿ 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.