Details:

Creators:
Ivey-Burden, Lindsay ; Todd, Alex
Ivey-Burden, Lindsay ; Todd, Alex Less -
Corporate Creators:
University of Virginia
Corporate Contributors:
United States. Dept. of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:
[+]
Case Studies Data And Information Technology Geographic Information Systems Geological Surveying Geotechnology Highways I42: Soil Mechanics Interstate Highways Karst Mapping Research Hub Risk Analysis Sinkholes
Publication/ Report Number:
UVA 2013-04
Resource Type:
Tech Report
Geographical Coverage:
Virginia ; United States
Virginia ; United States Less -
TRIS Online Accession Number:
01570311
Edition:
Final Report
Corporate Publisher:
Mid-Atlantic Universities Transportation Center
Abstract:
This study proposes the use of a geographic information system (GIS) to create a susceptibility map, pinpointing regions in the karst counties of Virginia, in particular, along interstates, most susceptible to future sinkhole development, determined by five factors that have previously been shown to play a role in the acceleration of sinkhole formation in Virginia: bedrock type, proximity to fault lines, drainage class, slope of incised river banks, and minimum soil depth to bedrock. The analysis compares a 1:24,000 scale map of existing sinkholes developed by Virginia Department of Mines Minerals and Energy (DMME) geologist, David Hubbard, with a series of risk maps representing differing combinations of each of the five risk factors to determine which weighted combination is most appropriate to use for a final representative risk map. The layers representing each risk factor are created using publicly available tabular and spatial data taken from the United States Department of Agriculture (USDA) Soil Survey Geographic (SSURGO) Database, the United States Geological Survey (USGS) National Map, the USGS Mineral Resources Online Data, and the National Weather Service. The final combination choice will provide an idea of the corresponding factor’s influence on predicting sinkhole risk regions. This investigation identified the following results for karst terrain in Virginia: (1) bedrock type has the most significant impact on predicting sinkhole risk, (2) proximity to faults plays a minimal, yet present, role in determining sinkhole risk, (3) drainage class is the second most influential factor in sinkhole formation behind bedrock type, (4) slope of incised river bank plays no role in the formation of sinkholes in Virginia, and (5) depth of overlying soil to bedrock has an existent yet insignificant effect on sinkhole development. The results display how this new inexpensive and efficient method of predicting sinkhole susceptibility can highlight the influence of natural features that trigger sinkhole and provide a map that can be used by local transportation departments as a general guideline to visualize regions along heavily trafficked interstates most and least at risk for sinkhole collapse. A benefit to this methodology is that the new technique can be adjusted to accommodate for sinkhole susceptibility in regions across the world, by simply adjusting the input risk layers to consider sinkhole risk potential based on the specific geology of a particular region.
Format:
PDF
Funding:
DTRT12-G-UTC03
Collection(s):
US Transportation Collection University Transportation Centers
Main Document Checksum:
[+]
urn:sha256:d7b53e51efd27f929d80b4a71ac9e61a721e9d2c74449b89b30fa391fe171a07
Download URL:
https://rosap.ntl.bts.gov/view/dot/29048/dot_29048_DS1.pdf
File Type:

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