Topic: Bridge Scour
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What are flow modification methods that would reduce bridge scour...
Just reduce the water pressure and velocity. You may construct break water walls, diversion canals and overflow with weirs at the upstream of bridge to reduce water pressure and velocity. Read More »
Source: http://answers.yahoo.com/question/index?qid=20090102045412AA0PO4X
What flow modification procedures can be applied to a physical hy...
You can reduce turbulence at the bridge by straightening the flow path upstream, making sure the channel under the bridge is smooth and of constant depth, and I suppose by increasing the viscosity of the water [such as by adding karo syrup ... Read More »
Source: http://answers.yahoo.com/question/index?qid=20090110195251AAwP60R
What is the mechanism of scouring at obstructions (e.g. bridge pi...
When the water flow in river is deflected by obstructions like bridge piers, scouring would occur arising from the formation of vortexes. The mechanism of formation of vortices is as follows: the flow hits the bridge piers and tends to move... Read More »
Source: http://www.engineeringcivil.com/theory/bridge-engineering/page/6
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Bridge Scour
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The AASHTO Manual for Condition Evaluation of Bridges states that an assessment of scour vulnerability of substructures should be included in the bridge file. In addition, channel profiles and cross- sections from current and past inspectio...
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Source: http://www.fhwa.dot.gov/Bridge/nbis/qareviewbo.cfm
