A sewer grate is a metal cover that sits over an opening in the ground, allowing rainwater and surface runoff to flow into the sewer system. These grates are designed to prevent larger debris, like leaves and trash, from entering the sewer while still allowing water to drain efficiently. Typically found on streets and sidewalks, sewer grates come in various shapes and sizes, often featuring a grid pattern. They are essential for maintaining proper drainage and preventing flooding during heavy rain. Regular maintenance is necessary to ensure they remain clear and functional.