A Guide to the Effects of Debris Accumulations at River Bridges
Author: Francisco Nicolas Cantero-Chinchilla
Publisher:
Published: 2019
Total Pages: 39
ISBN-13: 9781912431052
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Author: Francisco Nicolas Cantero-Chinchilla
Publisher:
Published: 2019
Total Pages: 39
ISBN-13: 9781912431052
DOWNLOAD EBOOKAuthor: Peter Frederick Lagasse
Publisher: Transportation Research Board
Published: 2010
Total Pages: 177
ISBN-13: 0309118344
DOWNLOAD EBOOKTRB's National Cooperative Highway Research Program (NCHRP) Report 653: Effects of Debris on Bridge Pier Scour explores guidelines to help estimate the quantity of accumulated, flow event debris, based on the density and type of woody vegetation and river bank condition upstream and analytical procedures to quantify the effects of resulting debris-induced scour on bridge piers. The debris photographic archive, the survey questionnaire and list of respondents, and the report on the field pilot study related to development of NCHRP 653 was published as NCHRP Web-Only Document 148: Debris Photographic Archive and Supplemental Materials for NCHRP Report 653.
Author: Arthur C. Parola
Publisher: Transportation Research Board
Published: 2000
Total Pages: 90
ISBN-13: 9780309066617
DOWNLOAD EBOOKAuthor: Fred F. M. Chang
Publisher:
Published: 1979
Total Pages: 76
ISBN-13:
DOWNLOAD EBOOKDebris causes hydraulic problems at highway bridges nationwide. The problems are the greatest in the Pacific Northwest and the upper and lower Mississippi River Valley. Debris hazards are local and infrequent phenomena often associated with large floods. Most bridge destruction is due to accumulation against bridge components. Debris may partially or totally block waterways and create adverse hydraulic conditions that erode pier foundations and bridge abutments and do other structural damage. Many debris problems exist in forested areas with active logging operations. Bridges on streams where stream slopes are mild or moderate, in contrast to headwater streams, are more vulnerable to debris related hazards. Debris hazards occur more frequently in unstable streams where bank erosion is active.
Author: Dale Wayne Decker
Publisher:
Published: 2002
Total Pages: 112
ISBN-13:
DOWNLOAD EBOOKAuthor: Anthony Keith McClellan
Publisher:
Published: 1994
Total Pages: 148
ISBN-13:
DOWNLOAD EBOOKAuthor: U.s. Department of Transportation
Publisher: Createspace Independent Pub
Published: 2015-03-01
Total Pages: 182
ISBN-13: 9781508680574
DOWNLOAD EBOOKDebris accumulation at culvert and bridge structures openings is a widespread problem. The accumulation of debris at inlets of highway culverts and bridge structures is a frequent cause of unsatisfactory performance and malfunction. This accumulation may result in erosion at culvert entrances, overtopping and failure of roadway embankments and damage to adjacent properties, increased local scour at piers and/or abutments, and the formation of pressure flow scour. Consideration of debris accumulations and the need for debris-control structures should be an essential part of the design of all drainage structures. Structural and non-structural measures have been used effectively to prevent or reduce the size of debris accumulations at bridges and culverts. Structural measures can include features that: (a) intercept debris at or upstream of a structure inlet; (b) deflect debris near the inlet; or (c) orient the debris to facilitate passage of the debris through the structure. Non-structural measures include management of the upstream watershed and maintenance. This publication provides measures for both culvert and bridge structures. The measures available for culverts are based on the information included in earlier editions of this manual. Selection of a certain debris countermeasure depends upon the size, quantity, and type of debris, the potential hazard to life and property, the costs involved, and the maintenance proposed.
Author: Peter Frederick Lagasse
Publisher: Transportation Research Board
Published: 2013
Total Pages: 175
ISBN-13: 0309283566
DOWNLOAD EBOOK"TRB's National Cooperative Highway Research Program (NCHRP) Report 761: Reference Guide for Applying Risk and Reliability-Based Approaches for Bridge Scour Prediction presents a reference guide designed to help identify and evaluate the uncertainties associated with bridge scour prediction including hydrologic, hydraulic, and model/equation uncertainty. For complex foundation systems and channel conditions, the report includes a step-by-step procedure designed to provide scour factors for site-specific conditions."--Publisher's description.
Author: Transportation Association of Canada
Publisher: Thomas Telford
Published: 2004
Total Pages: 206
ISBN-13: 9780727732620
DOWNLOAD EBOOKBasic hydraulic considerations - Channel types and behaviour relation to bridges - Basic hydraulic requirements - Hydraulic design procedures Hydrologic estimates - Statistical frequency analysis - Runoff modeling - Empirical methods - High water levels and stage-discharge relations - Extreme floods and risk Scour protection and channel control - Scour protection around bridge foundations - Erosion protection of banks and slopes - Design of rock riprap - Cannel control works Hydraulic aspects of construction, inspection and maintenance - Construction - Inspection - Maintenance Special problems - Tidal crossings - Inland basic crossings - Waves and waves protection - Physical modeling of bridge problems - Alluvial fans - Debris flow and torrents
Author: Charles D. McCormick
Publisher:
Published: 1995
Total Pages: 140
ISBN-13:
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