Effects Of Debris On Bridge Pier Scour

TRB'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.

"A comprehensive state-of-the-art treatment of scour and bridge foundations - both a handy reference text and a manual for the practicing bridge designer."--Publisher.

This document contains Appendices A through C from the contractor's final report on NCHRP Project 24-26, which is published as NCHRP Report 653, "Effects of Debris on Bridge Pier Scour." The appendices are (A) Debris Photographic Archive; (B) Survey of Practitioners, Instructions for Viewing NCHRP 24-26 Questionnaire Responses Databases, Survey Questionnaire, and List of Respondents; and (C) Field Pilot Study Report.

Information and technical data concerning scouring/erosion caused by water fl in rivers and streams. More specifically, how certain structures exaggerate this natural process by restricting water flow, causing constriction and loc scour. Material presented is from both field studies and laboratories