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• • <br />Chapter 4-Site-Specific Industrial Storm Water BMPs <br />• drainage behind the bulkhead or retaining wall to prevent erosion around the structure. Gabion and <br />grid pavers should be installed according to manufacturers' recommendations. <br />Stream bank stabilization structures should be inspected regularly and after each large storm event. <br />Structures should be maintained as installed. Structural damage should be repaired as soon as <br />possible to prevent further damage or erosion to the stream bank. <br />Advantages of Stream Bank Stabilization <br />• Can provide control against erosive forces caused by the increase in storm water flows <br />created during land development <br />• Usually will not require as much maintenance as vegetative erosion controls <br />• May provide wildlife habitats <br />• Forms a dense, flexible, self-healing cover that will adapt well to uneven surfaces (riprap) <br />Disadvantages of Stream Bank Stabilization <br />• Does not provide the water quality or aesthetic benefits that vegetative practices could <br />• Should be designed by qualified professional engineers, which may increase project costs <br />• May be expensive (materials costs) <br />• May require additional permits for structure <br />• May alter stream dynamics which cause changes in the channel downstream <br />• May cause negative impacts to wildlife habitats <br />• <br />4-59