Countermeasures to Protect Bridge Abutments from Scour (2007) / Chapter Skim
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41.1 Introduction Scour of bridge abutments is a common cause of bridge failure, often resulting in substantial interruption of traffic, and sometimes loss of life, not to mention damage to vehicles. An abutment scour entails hydraulic erosion of the waterway boundary around an abutment and the geotechnical failure of both the soil upon which the abutment is placed and of the soil comprising the embankment at an abutment.
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From page 5... ...
during floods. It has been recognized, therefore, that along with new countermeasure concepts, better design and construction guidelines need to be developed to protect bridge abutments and approach embankments from scour damage and to reduce the depths to which expensive deep foundations may have to be placed.
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From page 6... ...
NCHRP Project 24-7(2) further reported on pier selection criteria, guidelines for design and construction, inspection, maintenance, and performance evaluation.
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