Bridge Stormwater Runoff Analysis and Treatment Options (2014) / Chapter Skim
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4Overview 1.1 Purpose The purpose of this guide is to assist the practitioner in assessing the need for and identifying the appropriate BMPs for stormwater runoff from bridge decks. The study focuses on bridge structures that cross a waterway and discharge runoff directly to the receiving water, though many of the measures discussed will be applicable to other bridge structures.
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5 The flux of particulates (pollutants) deposited on the bridge surface and subsequently removed by vehicle-induced and natural wind currents is significant since displaced particles will be deposited directly on the receiving water during dry weather conditions.
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6Figure 1-1. BMP flowchart.
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7 pollutants to the receiving water during dry or wet weather to the extent practicable. Step 3: Determine if the bridge is subject to an NPDES permit.
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8These BMPs were selected for their performance, generally broad compatibility with physical site constraints and familiarity to and common use by DOTs. The practitioner is not constrained by these choices and other BMPs may be a better fit for site conditions.
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