NEHRP Site Class and Liquefaction Susceptibility Maps for the Wood River Valley, Idaho

Digital Databases (DD): DD-8

Year
2013
Authors
Kerrie N. Weppner
William M. Phillips
Jamey Turner
Dan O'Connell
Bruno Protti
Kenneth M. Bernstein
Description

This database contains maps of NEHRP seismic site class and liquefaction susceptibility for the portion of the Wood River containing the cities of Sun Valley, Ketchum, Hailey, and Bellevue. The NEHRP seismic site class map is based upon measurements at 51 sites of average shear wave velocity within 30 m (100 ft) of the surface (Vs30). These measurements were extrapolated throughout the map area using a surficial geologic map. The data used to construct the maps are provided in ESRI ArcMAP format version 10.1, and as Microsoft Excel spreadsheets of the Vs30 depth profiles. An Appendix provides details on how the site class maps were constructed. Liquefaction susceptibility was constructed using a model of depth to the regional water table and with an age-time-environment classification of surficial geologic units. Both maps contain further explanatory text.

Data Version
6.2013.1
Date Added

FREE Digital Downloads
Digital Documents
Liquefaction GIS
Zip
23,829 KB
ESRI Personal Geodatabase
Data used to construct the Liquefaction Susceptibility map data in Personal Geodatabase format; .mxd in ArcMap v. 10.1 format. Includes basemap, ATE classification of geology polygons, aquifer extent, and liquefaction class files
NEHRP GIS
Zip
24,389 KB
ESRI Personal Geodatabase
Data used to construct the NEHRP site class map data in Personal Geodatabase format; .mxd in ArcMap v. 10.1 format. Data include Vs30, depth to water table, ATE classification, classified geology polygons, project area, and basemap files
NEHRP Appendix A
PDF
588 KB
PDF
Details on construction of the NEHRP Site Class Map
Liquefaction Map
PDF
20,649 KB
PDF
Liquefaction susceptibility map and explanatory text
NEHRP Map
PDF
19,801 KB
PDF
NEHRP site class map and explanatory text
NEHRP Consultant Report
Zip
12,675 KB
Several
Seismic data collected in the Wood River Valley by Fugro Consultants Inc.
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