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RE: Wind design on hillside and slopes - tools

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You can get a good set of electronic topo maps from DeLorme.  It only costs 
$100 for the whole US.  That is what I have used when have done the topo 
factor on some projects.  It will let you located site (most of time) by 
street address...or you can always use lat and long.


Adrian, MI

...... Original Message .......
On Tue, 6 Jan 2009 16:04:19 -0800 "Jeff Smith" <jeffsmith7(--nospam--at)> 
>I use a trail GPS for recreation , I wish I had remembered to take it with 
me to the site I mentioned in my wind topo post. Since I do not have good 
topo info, I started looking at google earth. You can get elevations by 
moving your mouse over the image and you can measure distances with the 
ruler tool. Unfortunatley there is not an topo layer in Google Earth, but 
there is a topo terrain view in Google Maps, so you can go back and forth 
between the two.  I found that you can download and open a USGS topo map 
overlay .kmz file and it will place the map over your point of interest in 
Google Earth and you can print out the map at decent resolution. I found it 
to be kind of buggy and sometimes does not load or loads after a long 
delay. I found the file on a blog and I am not sure if it is legal to 
distribute so I have not posted the link.
>From: Dennis Wish [mailto:dennis.wish(--nospam--at)]
>Sent: Tuesday, January 06, 2009 12:47 PM
>To: seaint(--nospam--at)
>Subject: Wind design on hillside and slopes - tools
>I received a Garmin Nuvis 205W GPS for my car from family. The prices are 
dropping and it was purchased for $100.00 locally and is normally over 
$200.00. I discovered that it is not only accurate for pedestrian use to 
find a cache from a game posted on the Garmin website where coordinates are 
provided to help you locate a point of interest cache, but that the device 
also maintained a proper elevation measurement while driving up into the 
mountains. In the current wind force analysis of ASCE 7-05, a hillside 
structure needs to be analyzed for wind traveling up the slope. The bottom 
and top  elevation of the hill needs to be

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