<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Edward J. Doheny</dc:creator>
  <dc:date>1996</dc:date>
  <dc:description>The modified potential-scour index described in this report is based on a  potential-scour index used by the U.S. Geological Survey Maryland  District (Maryland index), and a prototype index developed by the U.S.  Geological Survey Tennessee District (Tennessee index).  The  modifications were made to (1) improve the technical content of theMaryland index, and (2) provide a more extensive set of index variables  for assessment of potential scour at bridges.  The report demonstrates  and describes problems that were encountered when using the Maryland  index in a study of county- maintained bridges in Maryland from 1993 to  1995.The modifications made to specific index variables and ranking  values in the Maryland index are presented and discussed.  A comparison  of potential-scour ratings from the modified potential- scour index, as  applied to two bridges, is presented.This comparison indicates that the  modified potential-scour index produces potential-scour ratings that most  consistently reflect scour conditions observed at these bridges.</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.3133/ofr96554</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>U.S. Geological Survey ;&#13;
Branch of Information Services [distributor],</dc:publisher>
  <dc:title>A modified index for assessment of potential scour at bridges over waterways</dc:title>
  <dc:type>reports</dc:type>
</oai_dc:dc>