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These data are supplemental rip-rap gradation data (Wolman Pebble Count) in text (.txt) format, collected during 2014-2018 field seasons for select bridges in the United States. These data were collected using a measuring tape to determine riprap gradation (D15, D50, D85, and D100) on in-place riprap at bridge piers and/or abutments at various locations in each study reach. They supplement the Geospatial Data for Bridge Scour Countermeasure Assessments at Select Bridges in the United States, 2016–18. For high-resolution sites, traditional multibeam surveys were conducted using methods described in Huizinga (2015).
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These data are supplemental site information in portable document format (.pdf) collected during 2016-2018 field seasons for select bridges in the United States (Dudunake and others, 2018). These files describe building plans for countermeasures, a field from to describe conditions during site assessment, and a photo summary of the study area.
    map background search result map search result map Particle Size Analysis for Bridge Scour Countermeasure Assessments at Select Bridges in the United States, 2014-18 Site Information for Bridge Scour Countermeasure Assessments at Select Bridges in the United States, 2016-18 Particle Size Analysis for Bridge Scour Countermeasure Assessments at Select Bridges in the United States, 2014-18 Site Information for Bridge Scour Countermeasure Assessments at Select Bridges in the United States, 2016-18