Lock gates are structures used in waterways to control the water level and facilitate the passage of boats and ships. They are typically found in canals and river locks, allowing vessels to move between sections of different water levels. When a boat enters a lock, the gates close behind it, and water is either added or removed to raise or lower the vessel to the next section. The operation of lock gates is essential for navigation, especially in areas with significant elevation changes. They help maintain a consistent water level and prevent flooding in surrounding areas. Lock gates are often operated manually or through automated systems, ensuring safe passage for all types of watercraft.