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r^ <br />4 -Best Management Practices for Erosion:and Sediment control <br />40 .4.04 CONSTRUCTION ROAD STABILIZATION <br />(ES BMP 1.02) <br />W <br />Definition <br />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 />• 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 />Wherever stone -base roads or parking areas are constructed, whether permanent or <br />temporary, for use by construction traffic. <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, <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 />s 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 life. of 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 />the final base course of the road, thereby offsetting the initial expenditure. <br />W <br />W <br />