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| Scientific Investigations Report 2006-5033 |

## Hydraulic and Geomorphic Monitoring of Experimental Bridge Scour Mitigation at Selected Bridges in Utah, 2003-05

 By Terry A. Kenney and Tim S. McKinney ABSTRACT
  Unique bridge scour mitigation designs using concrete A-Jacks were developed by the Utah Department of Transportation and installed at the Colorado River Bridge at State Road 191 and the Green River Bridge at State Road 19. The U.S. Geological Survey monitored stream reaches at these sites by collecting streambed-topography and water-velocity data from 2003 through 2005. These data were acquired annually from a moving boat with an acoustic Doppler current profiler and a differential global positioning system. Raw unordered data were processed and readied for interpolation into organized datasets with DopplerMacros, a set of computer programs. Processed streambed topography data were geostatistically interpolated by using Ordinary Kriging, and inverse distance weighting interpolation was used in the development of the two-dimensional velocity datasets. These organized datasets of topography and velocity were developed for each survey of the two bridge sites. A comparison of the riverbed topography data for each survey was done. An increase in bed elevation related to the installation of the A-Jacks scour countermeasures is evident at the Colorado River Bridge at State Road 191. The three topographic datasets acquired after the installation at the Green River Bridge at State Road 19 show few changes. 

This report is contained in the following file:
Text
SIR2006_5033.pdf  (3.6 mb)Appendixes are data files Appendix A
 Unorganized streambed-topography datasets from 2003, 2004, and 2005 surveys of the Colorado and Green River Bridges. Datasets consist of Easting (m), Northing (m), and nonslope transformed elevation (ft). 

colorado_03_proc_elev.txtcolorado_04_proc_elev.txtcolorado_05_proc_elev.txtgreen_03_proc_elev.txtgreen_04_proc_elev.txtgreen_05_proc_elev.txt
Appendix B
 Unorganized vertically averaged water-velocity vector datasets from 2003, 2004, and 2005 surveys of the Colorado and Green River Bridges. Datasets consist of Easting (m), Northing (m), vertically averaged east velocity vector component (ft/s), vertically averaged north velocity vector component (ft/s), and vertically averaged vertical velocity vector component (ft/s). 
colorado_2003_vert_ave_vel.txtcolorado_2004_vert_ave_vel.txtcolorado_2005_vert_ave_vel.txtgreen_2003_vert_ave_vel.txtgreen_2004_vert_ave_vel.txtgreen_2005_vert_ave_vel.txtAppendix C
 Organized interpolated streambed-topography datasets from 2003, 2004, and 2005 surveys of the Colorado and Green River Bridges. Datasets consist of Easting (m), Northing (m), and interpolated slope transformed elevation (ft). 

colorado_2003_interp_elev.txtcolorado_2004_interp_elev.txtcolorado_2005_interp_elev.txtgreen_2003_interp_elev.txtgreen_2004_interp_elev.txtgreen_2005_interp_elev.txt
Appendix D
 Organized interpolated water-velocity vector datasets from 2003, 2004, and 2005 surveys of the Colorado and Green River Bridges. Datasets consist of Easting (m), Northing (m), interpolated vertically averaged east velocity vector component (ft/s), interpolated vertically averaged north velocity vector component (ft/s), and interpolated vertically averaged vertical velocity vector component (ft/s). 

colorado_2003_interp_vel.txtcolorado_2004_interp_vel.txtcolorado_2005_interp_vel.txtgreen_2003_interp_vel.txtgreen_2004_interp_vel.txtgreen_2005_interp_vel.txt

The PDF file is readable with Adobe Acrobat Reader. The reader is available for   free download from Adobe Systems Incorporated. 
 CONTENTS
Abstract 

Introduction 

Purpose and Scope 

Site Description 

Fluvial Setting 

 Colorado River Bridge at State Road 191 

 Green River Bridge at State Road 19 

Methods 

Data Acquisition 

Data Processing 

Dataset Development 

Streambed-Topography Dataset 

Water-Velocity Dataset 

Analysis of the Mitigation Efforts 

Summary 

References Cited

 Appendix—Results of Chemical Analyses for Synoptic Samples Collected near Creede, Colorado
 Send questions or comments about this report to the author, Terry Kenney,    at tkenney@usgs.gov, 801.908.5046.For more information about USGS activities in Utah, visit the **USGS     Utah District home page**.URL:http://ut.water.usgs.gov return to Utah home page
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U.S. Department of the Interior, U.S. Geological SurveyPersistent URL: http://pubsdata.usgs.gov/pubs/sir/2006/5033/		Page Contact Information: USGS Publishing NetworkLast modified: Thursday, December 01 2016, 06:55:23 PM