Drain grates are metal or plastic covers placed over drainage systems to prevent debris from entering while allowing water to flow through. They are commonly found in streets, parking lots, and sidewalks, helping to manage rainwater and prevent flooding. These grates come in various designs and sizes, often featuring slits or holes to facilitate drainage. Regular maintenance is essential to keep them clear of leaves, dirt, and other materials that could block water flow, ensuring that the stormwater management system functions effectively.