<?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 E. Fischer</dc:creator>
  <dc:date>1996</dc:date>
  <dc:description>&lt;p&gt;&lt;span class="EXLDetailsDisplayVal"&gt;A total of &lt;span class="searchword"&gt;130&lt;/span&gt; highway &lt;span class="searchword"&gt;bridges&lt;/span&gt; in &lt;span class="searchword"&gt;Iowa&lt;/span&gt; were assessed for &lt;span class="searchword"&gt;potential&lt;/span&gt; &lt;span class="searchword"&gt;scour&lt;/span&gt; using a &lt;span class="searchword"&gt;potential&lt;/span&gt;-&lt;span class="searchword"&gt;scour&lt;/span&gt; index developed by the U.S. Geological Survey for a bridge-&lt;span class="searchword"&gt;scour&lt;/span&gt; study in western Tennessee. Greater values of the index, which is composed of 11 components, suggest a greater likelihood of &lt;span class="searchword"&gt;scour&lt;/span&gt;-related problems occurring at a bridge. For the &lt;span class="searchword"&gt;Iowa&lt;/span&gt; &lt;span class="searchword"&gt;assessments&lt;/span&gt;, the minimum value was 3, the median value was 11.5, and the maximum value was 24.5. None of the &lt;span class="searchword"&gt;130&lt;/span&gt; &lt;span class="searchword"&gt;bridges&lt;/span&gt; required immediate attention with regard to installing &lt;span class="searchword"&gt;scour&lt;/span&gt; countermeasures. Based on the results of the &lt;span class="searchword"&gt;assessments&lt;/span&gt;, it was concluded that assessing &lt;span class="searchword"&gt;potential&lt;/span&gt; &lt;span class="searchword"&gt;scour&lt;/span&gt; only once at a site would be of limited benefit in the &lt;span class="searchword"&gt;Iowa&lt;/span&gt; Department of Transportation's bridge inspection program. Additional information would help determine whether repeated &lt;span class="searchword"&gt;potential&lt;/span&gt;-&lt;span class="searchword"&gt;scour&lt;/span&gt; &lt;span class="searchword"&gt;assessments&lt;/span&gt; would enhance more timely and cost-effective implementation of &lt;span class="searchword"&gt;scour&lt;/span&gt;countermeasures.&lt;/span&gt; &lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:language>en</dc:language>
  <dc:title>Potential-Scour Assessments at 130 Bridges in Iowa</dc:title>
  <dc:type>text</dc:type>
</oai_dc:dc>