Bridge Scour Monitoring Methods At Three Sites In Wisconsin
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Bridge Scour Monitoring Methods At Three Sites In Wisconsin
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Author : J. F. Walker
language : en
Publisher:
Release Date : 2005
Bridge Scour Monitoring Methods At Three Sites In Wisconsin written by J. F. Walker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Scour at bridges categories.
Of the nearly 11,500 bridges in Wisconsin, 89 have been assessed with critical scour conditions. The U.S. Geological Survey, in cooperation with the Wisconsin Department of Transportation, the Marathon County Highway Department, and the Jefferson County Highway Department, performed routine monitoring of streambed elevations for three bridges. Two monitoring approaches were employed: (1) manual monitoring using moderately simple equipment, and (2) automated monitoring, using moderately sophisticated electronic equipment. The results from all three sites demonstrate that both techniques can produce reasonable measurements of streambed elevation. The manual technique has a lower annual operating cost, and is useful for cases where documentation of long-term trends is desired. The automated technique has a higher annual operating cost and is useful for real-time monitoring of episodic events with short time durations.
Evaluation Of Bridge Scour Monitoring Methods
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Author : Joseph C. Davis
language : en
Publisher:
Release Date : 2003
Evaluation Of Bridge Scour Monitoring Methods written by Joseph C. Davis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Scour Monitoring Technology Implementation
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Author :
language : en
Publisher:
Release Date : 2014
Scour Monitoring Technology Implementation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Bridges categories.
Bridge scour is the removal of sediment around bridge foundations and can result in the failure of the bridge. Scour monitoring is performed to identify unacceptable scour on bridges considered to be scour critical and determine when scour reaches elevations that could cause potential bridge failure. Two types of monitoring are available: portable monitoring and fixed monitoring. Prior to this project, MnDOT was only using portable monitoring devices, which requires the deployment of personnel to make physical measurements of scour depths. For some scour critical bridges, especially during high-water events, fixed instrumentation capable of continuous scour monitoring was preferred, but MnDOT lacked the experience or expertise to install this type of equipment. This project installed fixed monitoring equipment at two bridge sites and monitored them for three years to determine the effectiveness and reliability of fixed scour monitoring deployments. Several device options were installed to allow MnDOT to analyze the installation and performance of different types of sensors. Both systems operated for the three years with some outages due to various causes but overall performance was acceptable. The outages were mostly related to power issues and communication issues. Valuable lessons were learned through the deployment, which may be applied to future installations. The deployment executed in this project has provided the confidence to deploy other fixed scour monitoring equipment at key bridges around the state of Minnesota. In addition, the data collected during deployment of the scour monitoring equipment has been stored and provides insight into scour processes. This data can be used by other research groups for design or research purposes.
Bridge Scour Monitoring Technologies
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Author : Matthew Lueker
language : en
Publisher:
Release Date : 2010
Bridge Scour Monitoring Technologies written by Matthew Lueker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Bridges categories.
Bridge failure or loss of structural integrity can result from scour of riverbed sediment near bridge abutments or piers during high-flow events in rivers. In the past 20 years, several methods of monitoring bridge scour have been developed spanning a range of measurement approaches, complexities, costs, robustness, and measurement resolutions. This project brings together the expertise of Minnesota Department of Transportation (Mn/DOT) bridge engineers and researchers, university hydraulic and electrical engineers, field staff, and inspectors to take the first steps toward development of robust scour monitoring for Minnesota river bridges. The team worked with Mn/DOT engineers to identify variables of scour critical bridges that affect the application of scour monitoring technology. The research team will used this information to develop a Scour Monitoring Decision Framework (SMDF) that will aid Mn/DOT in selecting the best technologies for specific sites. The final component of the project will involve testing the SMDF on five bridges in a case-study type demonstration; work plans for two of the sites were developed for demonstration of deployed instrumentation.
Monitoring Scour Critical Bridges
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Author : Beatrice E. Hunt
language : en
Publisher: Transportation Research Board
Release Date : 2009
Monitoring Scour Critical Bridges written by Beatrice E. Hunt and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Religion categories.
Developing A Bridge Scour Warning System
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Author : C. Bryan Young
language : en
Publisher:
Release Date : 2016
Developing A Bridge Scour Warning System written by C. Bryan Young and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Flooding and scour can be major threats to the integrity of bridges. During flood events, scour at bridge piers and abutments can undermine the foundations of the bridge, causing significant damage or even total structure loss. Because scour occurs below the water level during a large flood event, it can be difficult to detect and may go unnoticed unless a targeted inspection is performed. The Kansas Department of Transportation (KDOT) is required by federal mandate to establish and maintain a bridge scour plan of action for all scour-critical bridges in the state. A plan of action can include the implementation of scour countermeasures to protect and stabilize a bridge and/or scour monitoring. Bridge scour monitoring presents multiple challenges for bridge owners, including state Departments of Transportation (DOTs). This research project surveyed in situ and ex situ monitoring options with particular attention on warning system options in the public domain. In situ monitoring can include portable and/or fixed devices for detecting bridge scour. Ex situ monitoring implies a statewide system that issues scour alerts to trigger bridge closures and/or inspections based on hydrologic conditions (rainfall and/or streamflow). A systematic statewide system would be preferable for monitoring scour-capable events at bridges across the state. KDOT could leverage existing United States Geological Survey (USGS) and National Weather Service (NWS) tools to monitor scour-critical bridges or pursue a vendor to offer a turn-key solution. For critical locations, additional measures could be implemented at specific sites to offer more information or a higher level of monitoring.
Portable Scour Monitoring Equipment
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Author : James Douglas Schall
language : en
Publisher: Transportation Research Board
Release Date : 2004
Portable Scour Monitoring Equipment written by James Douglas Schall and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Scour (Hydraulic engineering) categories.
Introduction and research approach -- Findings -- Interpretation, appraisal, and applications -- Conclusions and suggested research -- References -- Appendixes.
Use Of Airborne Surface And Borehole Geophysical Techniques At Contaminated Sites
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Author :
language : en
Publisher:
Release Date : 1993
Use Of Airborne Surface And Borehole Geophysical Techniques At Contaminated Sites written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Earth resistance (Geophysics) categories.
Water Resources Related Information For The Milwaukee Metropolitan Sewerage District Planning Area Wisconsin 1970 2002
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Author : Morgan A. Schneider
language : en
Publisher:
Release Date : 2004
Water Resources Related Information For The Milwaukee Metropolitan Sewerage District Planning Area Wisconsin 1970 2002 written by Morgan A. Schneider and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Water quality categories.
Selected Water Resources Abstracts
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Author :
language : en
Publisher:
Release Date : 1991
Selected Water Resources Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Hydrology categories.