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r <br /> Chapter 4. - Best Management Practices for Erosion :and Sediment Control <br /> . 4. 04 CONSTRUCTION ROAD STABILIZATION <br /> (ES BMP 1 . 02) <br /> r <br /> Definition <br /> r The temporary stabilization of access roads , subdivision roads , parking areas , and other <br /> on-site vehicle transportation routes with stone immediately after grading .. <br /> "' Purposes <br /> 1 . To reduce the erosion and degradation of temporary roadbeds by construction <br /> r traffic, especially during wet weather. <br /> 2 . To reduce the erosion and minimize regrading of permanent roadbeds between the <br /> time of initial grading and final stabilization . <br /> Conditions Where Practice Applies <br /> r <br /> Wherever stone-base roads or parking areas are constructed, whether permanent or <br /> temporary, for use by construction traffic. <br /> r <br /> Planning Considerations <br /> r Areas which are graded for construction vehicle transport and parking purposes are <br /> especially susceptible to erosion. The exposed soil surface is continually . disturbed I <br /> leaving no opportunity for Vegetative stabilization. Such areas also tend to collect. and <br /> transport runoff waters along their surfaces . During . wet weather, they often become <br /> muddy quagmires which generate, significant quantities of sediment that may pollute <br /> nearby streams or be transported off-site on the wheels of construction vehicles . Dirt roads <br /> r can become so unstable during wet weather that they are virtually unusable . <br /> Permanent roads and: parking areas should : be paved as soon as possible after grading . <br /> to - However, it is understandable that funds forthis may not be available- in the early <br /> phases of the development project. As an alternative, the early application of stone may <br /> solve potential erosion and stability problems and eliminate later regrading costs. <br /> r Immediate stabilization of such areas with stone may cost more money initially, but it may <br /> actually save money over the lifeof the project by increasing the usefulness_ of the road <br /> during wetweather. Some of the stone will also probably remain in place for use as part of <br /> r the final base course of the road , thereby offsetting the initial expenditure. <br /> r <br /> r <br /> 4-11 <br />