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BMP C162: Scheduling <br /> Purpose Sequencing a construction project reduces the amount and duration of soil <br /> exposed to erosion by wind, rain, runoff, and vehicle tracking. <br /> Conditions of Use The construction sequence schedule is an orderly listing of all major land- <br /> disturbing activities together with the necessary erosion and sedimentation <br /> control measures planned for the project. This type of schedule guides the <br /> contractor on work to be done before other work is started so that serious <br /> erosion and sedimentation problems can be avoided. <br /> Following a specified work schedule that coordinates the timing of land- <br /> disturbing activities and the installation of control measures is perhaps the <br /> most cost-effective way of controlling erosion during construction. The <br /> removal of surface ground cover leaves a site vulnerable to accelerated <br /> erosion. Construction procedures that limit land clearing,provide timely <br /> installation of erosion and sedimentation controls, and restore protective <br /> cover quickly can significantly reduce the erosion potential of a site. <br /> Design • Avoid rainy periods. <br /> Considerations • Schedule projects to disturb only small portions of the site at any one <br /> time. Complete grading as soon as possible. Immediately stabilize the <br /> disturbed portion before grading the next portion. Practice staged <br /> seeding in order to revegetate cut and fill slopes as the work <br /> progresses. <br /> 4-54 Volume ll—Construction Stormwater Pollution Prevention February 2005 <br />