Where to find Site Soil Classification?
Where to find Site Soil Classification?
(OP)
Is there a friendly online source for finding the Site Soil Classification of various sites? A hydrologist friend of mine suggested I try the NRCS but I haven't been able to find the classification (A-E) on this website.






RE: Where to find Site Soil Classification?
RE: Where to find Site Soil Classification?
Jim
RE: Where to find Site Soil Classification?
These are the steps I took:
1. Find your site (I used search by address on the left)
2. Use the AOI (area of interest) button to draw out the site.
3. Click the "Soil Data Explorer" tab at the top
4. Click the "Soil Reports" in the new set of tabs that appear below the prior set of tabs
5. Click "Soil Physical Properties" on the left
6. Click "Engineering Properties" below that tab
7. Click "View Soil Report" button
8. Scroll down and the site class(es) appears under the hydrologic group column
If you feel this incorrect please let me know
RE: Where to find Site Soil Classification?
RE: Where to find Site Soil Classification?
The table on the website explains in the text below what those classifications are in the text below the chart, dealing with permeability of the soil.
I assumed you were looking for "Site Classification" as described in Chapter 20 of ASCE 7, dealing with elastic properties of the soil.
It looks to me like hard rock near the surface would be Class D on the hydrologic classification and Class A on the Site Classification, so they're not necessarily the same.
RE: Where to find Site Soil Classification?
RE: Where to find Site Soil Classification?
RE: Where to find Site Soil Classification?
RE: Where to find Site Soil Classification?
RE: Where to find Site Soil Classification?
RE: Where to find Site Soil Classification?
RE: Where to find Site Soil Classification?
RE: Where to find Site Soil Classification?
http://earthquake.usgs.gov/hazards/designmaps/usde...
Is the soil classification from the NRCS not the same thing as the soil classification the USGS is looking for?:
http://websoilsurvey.nrcs.usda.gov/app/WebSoilSurv...
RE: Where to find Site Soil Classification?
http://directives.sc.egov.usda.gov/OpenNonWebConte...
It is not the same as what USGS is looking for. The NRCS classification is a hydrologic/runoff classification. There are only four classifications.
USGS is looking for one of the 5 classifications used in seismic design as listed in ASCE 7 that is called a SITE classification. USGS incorrectly refers to it as a soil classification.
RE: Where to find Site Soil Classification?
RE: Where to find Site Soil Classification?
RE: Where to find Site Soil Classification?